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《Now Ongoing》【Autumn Gem Giveaway Campaign 💎 Get up to 30 gems depending on your purchase amount 🎁】 10/2 (Fri) – 10/5 (Mon)
[Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale] Featuring notable Ethiopian Paraiba tourmaline, Kashmir sapphire, and more
[Deadline: 10/3 (Sat) 10:00 AM: Lottery Sale] Diamonds with Sarine Light reports, new jewelry, and more
October Birthstones: Opal and Tourmaline
Gemstone Encyclopedia 3D Stickers Vol. 4 "Sakura In-cut" New release on Friday, 10/2 at 10:00 PM 🌸
Carafril (Karatz Flea Market)
KARATZ Books
Custom-made jewelry with stones

NEWS

2026/10/01

[Autumn Jewel Giveaway Campaign💎 Receive up to 30 jewels based on your purchase amount🎁] 10/2 (Fri) 0:00 - 10/5 (Mon) 23:59

2026/10/01

[10/4 (Sun) 10:00 Deadline: Lottery Sale ②] 17 carefully selected items, including the highly sought-after Ethiopian Paraiba tourmaline, Kashmir sapphire, and Bekily blue garnet.

2026/09/29

【10/3 (Sat) 10:00 Deadline: Lottery Sale ①】15 carefully selected items including diamonds with Sarine Light Reports and new jewelry pieces

【Lottery Sale】

coming soon 【12564524掲載】パキスタン・カシミール産非加熱サファイア 1.770ctルース

[10/4 (Sun) 10:00 AM Deadline: Lottery Sale ②_02] Unheated Sapphire from Kashmir, Pakistan 1.770ct Loose Stone GIA Sale price¥258,000
coming soon 【12563055掲載】ベキリーブルーガーネット（カラーチェンジガーネット） 1.015ctルース

[Deadline: Sun, Oct 4th, 10:00 AM: Lottery Sale ②_03] Madagascar Bekily Blue Garnet (Color Change Garnet) 1.015ct Loose Stone Sale price¥158,000
coming soon [Sun, Oct 4, 10:00 AM Deadline: Lottery Sale #2_07] Kashmir Unheated Sapphire 3.2mm/0.190ct Loose Stone GIA

[Sun, Oct 4, 10:00 AM Deadline: Lottery Sale #2_07] Kashmir Unheated Sapphire 3.2mm/0.190ct Loose Stone GIA Sale price¥128,000
coming soon [Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_15] Ethiopian Paraiba Tourmaline 0.430ct Loose Stone (CuO: 2.334%, MnO: 0.642%) GIA & Composition Analysis Report included

[Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_15] Ethiopian Paraiba Tourmaline 0.430ct Loose Stone (CuO: 2.334%, MnO: 0.642%) GIA & Composition Analysis Report included Sale price¥248,000
coming soon [Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_17] Ethiopian Paraiba Tourmaline 0.490ct Loose Stone (CuO: 1.191%, MnO: 0.519%) with GIA & Composition Analysis Report

[Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_17] Ethiopian Paraiba Tourmaline 0.490ct Loose Stone (CuO: 1.191%, MnO: 0.519%) with GIA & Composition Analysis Report Sale price¥358,000
coming soon [Deadline: Sun, Oct 4, 10 AM: Lottery Sale ②_12] Brazilian Paraiba Tourmaline 0.669ct Loose Stone (CuO: 1.16%, MnO: 4.27%) CGL Certified

[Deadline: Sun, Oct 4, 10 AM: Lottery Sale ②_12] Brazilian Paraiba Tourmaline 0.669ct Loose Stone (CuO: 1.16%, MnO: 4.27%) CGL Certified Sale price¥798,000
coming soon [Sun, Oct 4, 10:00 AM Deadline: Lottery Sale ②_08] Kashmir Unheated Sapphire 0.990ct Loose Stone GIA

[Sun, Oct 4, 10:00 AM Deadline: Lottery Sale ②_08] Kashmir Unheated Sapphire 0.990ct Loose Stone GIA Sale price¥458,000
coming soon 14K White Gold Lab-Created Alexandrite 0.46ct and Diamond 0.21ct Pendant Top (Necklace Top) with Appraisal Report

14K White Gold Lab-Created Alexandrite 0.46ct and Diamond 0.21ct Pendant Top (Necklace Top) with Appraisal Report Sale price¥49,800
coming soon 【32501961掲載】グレーダイヤモンド 0.380ctルース(FANCY GRAY, I-3)

[Deadline: 10/3 (Sat) 10 AM: Lottery Sale ①_14] Gray Diamond 0.380ct Loose (FANCY GRAY, I-3) GIA Sale price¥79,800
coming soon [Deadline: Sat, Oct 3, 10 AM: Lottery Sale ①_07] Internally Flawless Diamond (H&C) 0.320ct Loose Stone (D, IF, 3Excellent H&C) GIA & CGL Certified

[Deadline: Sat, Oct 3, 10 AM: Lottery Sale ①_07] Internally Flawless Diamond (H&C) 0.320ct Loose Stone (D, IF, 3Excellent H&C) GIA & CGL Certified Sale price¥158,000
coming soon [Deadline: Sat, Oct 3, 10:00 AM: Lottery Sale ①_01] Diamond 3.7mm/0.200ct Loose Stone (E, VS-2, 3Excellent) GIA

[Deadline: Sat, Oct 3, 10:00 AM: Lottery Sale ①_01] Diamond 3.7mm/0.200ct Loose Stone (E, VS-2, 3Excellent) GIA Sale price¥35,800
coming soon 【12564237掲載】ロシア産デマントイドガーネットキャッツアイ（ホーステール認む） 1.480ctルース

[Deadline: 10/4 (Sun) 10:00 AM] Lottery Sale ②_13: Russian Demantoid Garnet (horsetail inclusion visible) 7.0mm/1.480ct Loose Stone, GIA certified Sale price¥598,000
coming soon ムーンストーン 0.309ctルース

[10/4 (Sun) 10:00 AM Deadline: Lottery Sale ②_01] Sri Lankan Moonstone 0.309ct Loose Stone (Blue Moonstone) with Identification Report Sale price¥39,800
coming soon [Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_04] Myanmar Musgravite 0.080ct Loose Stone GIT

[Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_04] Myanmar Musgravite 0.080ct Loose Stone GIT Sale price¥188,000
coming soon [Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_05] Myanmar-sourced Musgravite 0.210ct Loose Gemstone, GIT certified

[Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_05] Myanmar-sourced Musgravite 0.210ct Loose Gemstone, GIT certified Sale price¥358,000
coming soon 【12564525掲載】ブラジル産パライバトルマリン 0.146ctルース

[Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_14] Brazilian Paraiba Tourmaline 3.4mm/0.146ct Loose Stone (CuO: 2.90%, MnO: 3.95%) CGL Certified Sale price¥258,000
coming soon [Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_11] Brazilian Paraiba Tourmaline 3.7mm/0.195ct Loose Stone (CuO: 2.80%, MnO: 5.74%) with Identification Report

[Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_11] Brazilian Paraiba Tourmaline 3.7mm/0.195ct Loose Stone (CuO: 2.80%, MnO: 5.74%) with Identification Report Sale price¥98,000
coming soon [Sun, Oct 4, 10:00 AM Deadline: Lottery Sale #2_09] Brazilian Alexandrite 0.300ct Loose Stone GIA

[Sun, Oct 4, 10:00 AM Deadline: Lottery Sale #2_09] Brazilian Alexandrite 0.300ct Loose Stone GIA Sale price¥148,000
coming soon [Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_16] Ethiopian Paraiba Tourmaline 0.480ct Loose (CuO: 2.291%, MnO: 0.627%) with GIA & chemical analysis report

[Deadline: Sun, Oct 4, 10:00 AM: Lottery Sale ②_16] Ethiopian Paraiba Tourmaline 0.480ct Loose (CuO: 2.291%, MnO: 0.627%) with GIA & chemical analysis report Sale price¥378,000
Sold out マスグラバイト 0.389ctルース

Sri Lankan Masgravite 0.389ct Loose (Tube-like Inclusions) with Japan Germany Gemmological Association Certificate
coming soon [Deadline: Mon, 9/14, 10:00 AM: Lottery Sale_06] Brazilian Paraiba Tourmaline 3.2mm/0.152ct Loose Stone (CuO: 1.1% MnO: 0.6%)

[Deadline: Mon, 9/14, 10:00 AM: Lottery Sale_06] Brazilian Paraiba Tourmaline 3.2mm/0.152ct Loose Stone (CuO: 1.1% MnO: 0.6%) Sale price¥158,000

10/3 (Sat) New & Updated

Gemstone Identification Guidebook (Not available for purchase separately; gift for purchases of 3,000 yen or more)

Gemstone Identification Guidebook (Not available for purchase separately; gift for purchases of 3,000 yen or more) Sale price¥0
Authentic Gem Encyclopedia 3D Stickers Vol. 1: The Big Five Gems

Authentic Gem Encyclopedia 3D Stickers Vol. 1: The Big Five Gems Sale price¥660
[10/3 10 PM Sale] &lt;<limited to stones>&gt; Fancy Color Diamond Gacha: Fancy Vivid Yellow, Fancy Green, and Fancy Gray (includes Chameleon Diamond, all stones come with sorting) &lt;<multi-purchase discount available>&gt;</multi-purchase></limited>

[10/3 10 PM Sale] <> Fancy Color Diamond Gacha: Fancy Vivid Yellow, Fancy Green, and Fancy Gray (includes Chameleon Diamond, all stones come with sorting) <> Sale price¥33,000
Sold out [Available 10/3 at 10 PM] 《1 Stone Only》 Pink Diamond (0.184ct, 3.5mm, I-1, Fancy Light Pink, with sorting) - Regular price 110,000 JPY 《Multi-buy discount available》

[Available 10/3 at 10 PM] 《1 Stone Only》 Pink Diamond (0.184ct, 3.5mm, I-1, Fancy Light Pink, with sorting) - Regular price 110,000 JPY 《Multi-buy discount available》

[On sale 10/3 at 10 PM] Diamond Gacha (all stones include sorting) featuring 2 diamonds that reveal hearts under a scope (0.20ct, 0.16ct) / Limited to 6 stones available / Multi-purchase discount available

[On sale 10/3 at 10 PM] Diamond Gacha (all stones include sorting) featuring 2 diamonds that reveal hearts under a scope (0.20ct, 0.16ct) / Limited to 6 stones available / Multi-purchase discount available Sale price¥8,800
[Oct 3, 10:00 PM Release] 《21 Stones Only》 Chic-colored FANCY color diamond gacha, 1 loose stone (0.16ct average), sourced in Hong Kong 《Multi-purchase discounts available》

[Oct 3, 10:00 PM Release] 《21 Stones Only》 Chic-colored FANCY color diamond gacha, 1 loose stone (0.16ct average), sourced in Hong Kong 《Multi-purchase discounts available》 Sale price¥3,980
【Available 9/ 22:00】《Limited to 4 stones》 Dumortierite in Quartz (Cut by Mr. Sangier) 《Multi-buy discount available》

【Available 9/ 22:00】《Limited to 4 stones》 Dumortierite in Quartz (Cut by Mr. Sangier) 《Multi-buy discount available》 Sale price¥5,980
Brazilian Rainbow Aquamarine (Iridescent Aquamarine) Loose Stone (Heart Shape) (Multiple Purchase Discounts Available)

Brazilian Rainbow Aquamarine (Iridescent Aquamarine) Loose Stone (Heart Shape) (Multiple Purchase Discounts Available) Sale price¥5,980
[Available 10/3, 10:00 PM] 《Limited 4 stones》 Sweet Home Mine, USA Rhodochrosite Loose Stone (6x4mm Cabochon Cut) 《Multiple purchase discount available》

[Available 10/3, 10:00 PM] 《Limited 4 stones》 Sweet Home Mine, USA Rhodochrosite Loose Stone (6x4mm Cabochon Cut) 《Multiple purchase discount available》 Sale price¥5,980
[Available Oct 3, 10 PM] <limited stones> Moldavite loose stone from former Czechoslovakia (8x6mm, oval cut) <multi-purchase discount available></multi-purchase></limited>

[Available Oct 3, 10 PM] Moldavite loose stone from former Czechoslovakia (8x6mm, oval cut) Sale price¥7,980
[10/3 10 PM Release] <limited to stones> Natural Pink Diamond Gacha (1 Loose Stone, Flawed/Outlet Item) from Hong Kong <multi-purchase discount available></multi-purchase></limited>

[10/3 10 PM Release] Natural Pink Diamond Gacha (1 Loose Stone, Flawed/Outlet Item) from Hong Kong Sale price¥5,980
[Available 10/3 at 10:00 PM] <limited to stones> Chic-colored FANCY color diamond gacha, sourced in Hong Kong, 1 loose stone (avg. 0.35ct) <multi-purchase discount available></multi-purchase></limited>

[Available 10/3 at 10:00 PM] Chic-colored FANCY color diamond gacha, sourced in Hong Kong, 1 loose stone (avg. 0.35ct) Sale price¥8,800
[Available 10/3 at 10 PM] <limited to stones> Mexican Cantera Opal Gacha - 1 Loose Stone (Avg. 2.5ct) <multi-purchase discounts available></multi-purchase></limited>

[Available 10/3 at 10 PM] Mexican Cantera Opal Gacha - 1 Loose Stone (Avg. 2.5ct) Sale price¥4,980
【10/3 22:00 Release】《15 stones limited》Illusion Tourmaline Gacha Loose Stone (3.0ct average) 《Multiple purchase discount available》

【10/3 22:00 Release】《15 stones limited》Illusion Tourmaline Gacha Loose Stone (3.0ct average) 《Multiple purchase discount available》 Sale price¥3,980
coming soon [10/4, 10 PM Release] &lt;<limited sets>&gt; K18 Akoya Pearl 5-Pearl Line Earrings with Appraisal Certificate &lt;<multi-purchase discount available>&gt;</multi-purchase></limited>

[10/4, 10 PM Release] <> K18 Akoya Pearl 5-Pearl Line Earrings with Appraisal Certificate <> Sale price¥24,800
coming soon 【On sale 10/4 at 22:00】《Limited to 6 stones》 FANCY-color pink diamond gacha, including FANCY PINK, FANCY INTENSE, FANCY DEEP, and rose-cut stones (all stones include sorting reports)《Multi-purchase discount available》

【On sale 10/4 at 22:00】《Limited to 6 stones》 FANCY-color pink diamond gacha, including FANCY PINK, FANCY INTENSE, FANCY DEEP, and rose-cut stones (all stones include sorting reports)《Multi-purchase discount available》 Sale price¥27,500
coming soon [Available 10/4 at 10 PM] 《Limited to 11 stones》 Garnet Gacha including Russian Demantoid Garnet (normally 69,800 yen) (plus 1 Mint Garnet stone included) 《Multi-purchase discounts available》

[Available 10/4 at 10 PM] 《Limited to 11 stones》 Garnet Gacha including Russian Demantoid Garnet (normally 69,800 yen) (plus 1 Mint Garnet stone included) 《Multi-purchase discounts available》 Sale price¥4,980
coming soon [On sale 10/4 at 22:00] 《Limited to 10 stones》 Fire Gacha featuring Benitoite (regular price 25,800 JPY) and Colorless Benitoite (regular price 12,800 JPY) (includes one bonus Blue Diamond) 《Multi-purchase discounts available》

[On sale 10/4 at 22:00] 《Limited to 10 stones》 Fire Gacha featuring Benitoite (regular price 25,800 JPY) and Colorless Benitoite (regular price 12,800 JPY) (includes one bonus Blue Diamond) 《Multi-purchase discounts available》 Sale price¥3,980
coming soon [Available 9/27 at 10:00 PM] 《Limited to 15 stones》 Brazilian Bicolor Tourmaline (Cabochon Cut) Gacha Loose Stone 《Multi-purchase discount available》

[Available 9/27 at 10:00 PM] 《Limited to 15 stones》 Brazilian Bicolor Tourmaline (Cabochon Cut) Gacha Loose Stone 《Multi-purchase discount available》 Sale price¥1,580
coming soon [Available 9/22, 10 PM] 《Limited to 3 stones》 Imperfect Andesine Labradorite (Rainbow Moonstone, Sanje Milky Way Star Cut) 《Multi-buy discount available》

[Available 9/22, 10 PM] 《Limited to 3 stones》 Imperfect Andesine Labradorite (Rainbow Moonstone, Sanje Milky Way Star Cut) 《Multi-buy discount available》 Sale price¥1,580
タンザニア・ウィンザー産非加熱バイカラーサファイア 0.500ctルース

【10/3 10 PM Release】Unheated Bicolor Sapphire from Winza, Tanzania 0.500ct Loose Gemstone with Identification Report Sale price¥59,800
インターナリーフローレスダイヤモンド 3.7mm/0.238ctルース(E, IF)

[Deadline: Wed, 9/22, 10:00 AM: Lottery Sale_11] Internally Flawless Diamond 3.7mm/0.238ct Loose Stone (E, IF) Sale price¥59,800
非加熱ピジョンブラッドルビー 0.620ctルース AIGS

[Mon, Sep 14, 10:00 AM Deadline: Lottery Sale_09] Unheated Pigeon Blood Ruby 0.620ct Loose Stone AIGS Sale price¥148,000
アフガニスタン産アウイナイト 0.067ctルース

[Available 10/3, 10:00 PM] Afghan Hauyne 0.067ct Loose Stone Sale price¥12,800
アフガニスタン産アウイナイト 0.093ctルース

[10/3 10 PM Release] Afghan Hauyne 0.093ct Loose Stone Sale price¥22,800
アフガニスタン産アウイナイト 0.095ctルース

[10/3 10 PM Sale] Afghan Hauyne 0.095ct Loose Gemstone Sale price¥18,800
パキスタン産ヴェイリネナイト 0.066ctルース

[Available Oct 3, 10 PM] Pakistani Väyrynenite 0.066ct Loose Gemstone Sale price¥14,800
パキスタン産ヴェイリネナイト 0.076ctルース

[Available 10/3, 10 PM] Pakistan Vayrynenite 0.076ct Loose Gemstone Sale price¥16,800
パキスタン産ヴェイリネナイト 0.095ctルース

[Available 10/3, 10 PM] Pakistani Väyrynenite 0.095ct Loose Gemstone Sale price¥19,800
Pt900 スリランカ産パープルサファイア 4.3mm/0.35ctダイヤモンド0.54ctリング鑑別書

[9/14 (Mon) 10:00 AM Deadline: Lottery Sale_12] Pt900 Sri Lankan Purple Sapphire 4.3mm/0.35ct Diamond 0.54ct Ring with Appraisal Report Sale price¥158,000
K18WG スリランカ産ブルーサファイア 1.22ct ダイヤモンド0.14ctリング鑑別書

[9/4 (Lottery Sale_11)] 18K White Gold Sri Lankan Blue Sapphire 1.22ct and Diamond 0.14ct Ring with Appraisal Report Sale price¥128,000
Pt900 ピンクトルマリン 1.53ct ダイヤモンド 0.22ctペンダントトップ（ネックレストップ）鑑別書

[9/22 (Wed) 10 AM Deadline: Lottery Sale_15] Pt900 Pink Tourmaline 1.53ct & Diamond 0.22ct Pendant Top (Necklace Top) with Appraisal Report Sale price¥118,000
東アフリカ産非加熱バイカラーサファイア 0.510ctルース

[Lottery Sale_01][For Winners Only][Item 12564184] East African Unheated Bicolor Sapphire 0.510ct Loose GIA Sale price¥98,000
コロンビア産ノンオイルエメラルドキャッツアイ 0.170ctルース

[Available 10/3, 10 PM] Colombian Non-Oiled Emerald Cat's Eye 0.170ct Loose Stone GIA Sale price¥59,800
タンザニア産コバルトスピネル 3.6mm/0.187ctルース 日独産地鑑別

[Available 10/3 at 10 PM] Tanzanian Cobalt Spinel 3.6mm/0.187ct Loose Stone, JGL Origin Report Included Sale price¥98,000
ブラジル産サンタマリアアクアマリン 0.318ctルース

[Available 10/3, 10:00 PM] Santa Maria Aquamarine from Brazil, 0.318ct loose stone, with certificate of authenticity Sale price¥29,800
コロンビア産雲母インエメラルド 0.249ctルース

【Available 10/3 at 10 PM】 Colombian Mica-in-Emerald 4.2mm/0.249ct Loose Gemstone with Certificate of Authenticity Sale price¥22,800
コロンビア産雲母インエメラルド 0.140ctルース

【10/3 22:00 Release】 Colombian Mica-in-Emerald 0.140ct Loose Stone with Identification Report Sale price¥18,800
コロンビア産エメラルド 0.126ctルース

[10/3 10 PM Sale] Colombian Emerald 0.126ct Loose Gemstone with Appraisal Report Sale price¥39,800
コロンビア産エメラルド 0.211ctルース

[10/3 10 PM Sale] Colombian Emerald 0.211ct Loose Gemstone with Identification Report Sale price¥59,800
coming soon 合成ルビー 1.803ctルース

[Available 10/4, 10 PM] Synthetic Ruby 1.803ct Loose Gemstone Sale price¥18,800
coming soon 合成ルビー 1.182ctルース

[10/4, 10:00 PM Sale] Synthetic Ruby 1.182ct Loose Stone Sale price¥12,800
coming soon ブラジル産アメジスト 2.984ctルース

[On sale 10/4 at 22:00] Brazilian Amethyst 2.984ct Loose Gemstone Sale price¥11,800
coming soon ブラジル産アメジスト 3.842ctルース

[Available 10/4, 10 PM] Brazilian Amethyst 3.842ct Loose Gemstone Sale price¥12,800
coming soon ブラジル産アメジスト 8.984ctルース

[10/4, 10 PM Release] Brazilian Amethyst 8.984ct Loose Gemstone Sale price¥9,800
coming soon ブラジル産アメジスト 4.850ctルース

[Available 10/4, 10 PM] Brazilian Amethyst 4.850ct Loose Gemstone Sale price¥12,800
coming soon 合成アレキサンドライト 0.614ctルース

[Available 10/4, 10 PM] Lab-created Alexandrite 0.614ct Loose Stone Sale price¥15,800
coming soon 合成アレキサンドライト 0.264ctルース

[Available Oct 4, 10 PM] Synthetic Alexandrite 0.264ct Loose Gemstone Sale price¥9,800
Show more

List of new arrivals

タンザニア・ウィンザー産非加熱バイカラーサファイア 0.460ctルース 鑑別書

[Available 10/2 at 10 PM] Unheated Bicolor Sapphire from Winza, Tanzania, 0.460ct Loose Stone with Gem Identification Report Sale price¥59,800
モザンビーク産パライバトルマリン 0.135ctルース

[Available 10/2 at 10 PM] Mozambique Paraiba Tourmaline 0.135ct Loose Stone Sale price¥7,980
モザンビーク産パライバトルマリン 0.096ctルース

[Available 10/2, 10:00 PM] Mozambique Paraiba Tourmaline 0.096ct Loose Gemstone Sale price¥6,980
ブラジル産非加熱インペリアルトパーズ（シェリーカラー） 0.698ctルース

[Available 10/2 at 10 PM] Brazilian Unheated Imperial Topaz (Sherry Color) 0.698ct Loose Gemstone Sale price¥98,000
スリランカ産ピンクサファイア 4.1mm/0.354ctルース 鑑別書

[Available 10/2 at 10 PM] Sri Lankan Pink Sapphire 4.1mm/0.354ct Loose Gemstone with Appraisal Report Sale price¥22,800
Authentic Gem Encyclopedia 3D Stickers Vol. 1: The Big Five Gems

Authentic Gem Encyclopedia 3D Stickers Vol. 1: The Big Five Gems Sale price¥660
スリランカ産スピネル 3.419ctルース

[Deadline: 9/5 (Sat) 10 AM: Lottery Sale_11] Sri Lankan Blue Spinel 3.419ct Loose Stone with Identification Report Sale price¥158,000
マダガスカル産ロイヤルブルーサファイア 4.0mm/0.377ctルース 鑑別書

[Deadline: Mon, 9/14, 10:00 AM: Lottery Sale_07] Madagascar Royal Blue Sapphire 4.0mm/0.377ct Loose Stone with Identification Report Sale price¥69,800
スリランカ産非加熱カラーチェンジサファイア 1.170ctルース

[Deadline: Sat, Sep 5, 10:00 AM: Lottery Sale_09] Sri Lankan Unheated Color-Change Sapphire 1.170ct Loose Stone, GIA certified Sale price¥188,000
スリランカ産非加熱パープルサファイア 0.870ctルース

[Item 12564367] Unheated Sri Lankan Purple Sapphire 0.870ct Loose Stone GIA Sale price¥128,000
ロシア産アレキサンドライト 0.103ctルース

[Item 12564511] Russian Alexandrite 0.103ct Loose Stone Sale price¥128,000
ロイヤルブルーサファイア 0.530ctルース AIGS

Royal Blue Sapphire 0.530ct Loose Stone Sale price¥69,800
K18 ダイヤモンド0.35ct フラワーモチーフリング鑑別書

[Item 22602768] [Color-Full] K18 0.35ct Diamond Ring with Appraisal Report Sale price¥128,000
非加熱ピジョンブラッドルビー 0.510ctルース

[Item 12561430] Unheated Pigeon Blood Ruby 0.510ct Loose Stone Sale price¥89,800
Pt900 アイスブルーダイヤモンド・ ダイヤモンドリング鑑別書

[Item #22602735] [Colorifi] Pt900 Ice Blue Diamond (Treated) 0.24ct Diamond Ring with Appraisal Report Sale price¥89,800
Pt900 カラーチェンジサファイア0.446ct ダイヤモンド0.12ctリング鑑別書

[On sale 8/31 at 10 PM] [Colori] Pt900 Color-Change Sapphire 0.446ct Diamond 0.12ct Ring with Identification Report Sale price¥79,800
Pt900 スピネル 0.35ct・ダイヤモンド0.09ctペンダントトップ（ネックレストップ）鑑別書

[Item No. 22602792] [Colorify] Pt900 Spinel 0.35ct / Diamond 0.09ct Pendant Top (Necklace Top) with Appraisal Report Sale price¥39,800
ザンビア産エメラルド 0.202ctルース

[Listing 12556682] Zambian Emerald 0.202ct Loose Stone Sale price¥15,800
K18 インペリアルトパーズ・ダイヤモンドリング鑑別書

[Item 22602770] K18 Imperial Topaz Ring with Appraisal Report Sale price¥128,000
K18WG クレサンベール 合成アレキサンドライト3.00ct プリンセスカット・ダイヤモンド0.12ct ペンダントトップ 鑑別書

[Item No. 22602776] [Colorify] K18WG Synthetic Alexandrite 3ct, Diamond 0.12ct Pendant Top (Necklace Top) with Appraisal Report Sale price¥98,000
K18WG ダイヤモンド 0.5ct ペンダントトップ（ネックレストップ）鑑別書

[Item 22602774] [Color-Full] K18WG 0.5ct Diamond Pendant Top (Necklace Top) with Appraisal Report Sale price¥35,800
タンザニア産バイカラーグロッシュラーガーネット 0.904ctルース

[Item 12563638] Tanzanian Bicolor Grossular Garnet 0.904ct Loose Stone Sale price¥25,800
ロシア産フェナカイト 0.712ctルース

[12564298] Phenakite from Malyshevo, Russia, 0.712ct Loose Gemstone Sale price¥22,800
ロシア産フェナカイト 0.635ctルース

[Item 12564299] Phenakite from Malyshevo, Russia, 0.635ct loose stone Sale price¥22,800
スペイン産ピンクコバルトカルサイト 0.360ctルース

[12564313 listed] Spanish Pink Cobalt Calcite 0.360ct Loose Stone Sale price¥25,800
エチオピアサンストーン 1.228ctルース

[Item 12564350] Ethiopian Sunstone 1.228ct Loose Gemstone Sale price¥18,800
エチオピアサンストーン 2.252ctルース

[Item 12564351] Ethiopian Sunstone 2.252ct Loose Gemstone Sale price¥35,800
ミャンマー産スターペリドット 3.644ctルース

Myanmar Star Peridot 3.644ct Loose Stone Sale price¥29,800
アンデシン・ラブラドライト（通称名 ブルームーンストーン） 4.518ctルース

[Available 9/27 at 10 PM] Madagascar Andesine-Labradorite (Common name: Blue Moonstone) 4.518ct Loose Stone Sale price¥29,800
ブラジル産インディゴライトトルマリン 2.587ctルース

[Deadline 8/29 | Lottery Sale] Brazilian Indicolite Tourmaline 2.587ct Loose Stone, with NGL Certificate Sale price¥98,000
非加熱ピジョンブラッドルビー 0.270ctルース AIGS

[9/14 (Mon) 10:00 AM Deadline: Lottery Sale_08] Unheated Pigeon Blood Ruby 0.270ct Loose Stone AIGS Sale price¥48,800
ブラジル産エレスチャルアメジスト 3.684ctルース

[Available 9/30 at 10:00 PM] Brazilian Elestial Amethyst 3.684ct Loose Gemstone Sale price¥8,800
アメトリン 16.565ctルース

[10/2 10 PM Release] Brazilian Ametrine 16.565ct Loose Gemstone Sale price¥29,800
ボリビア産アメトリン 4.815ctルース

[On sale 9/30 at 10 PM] Bolivian Ametrine 4.815ct Loose Stone Sale price¥12,800
アメトリン 4.234ctルース

[10/2 10 PM Sale] Bolivian Ametrine 4.234ct Loose Stone Sale price¥18,800
アメトリン 2.680ctルース

[Available Oct 2, 10:00 PM] Bolivian Ametrine 2.680ct Loose Stone Sale price¥12,800
メキシコ産ファイアオパール 0.593ctルース

[On sale 9/26 at 10 PM] Mexican Fire Opal 0.593ct Loose Stone Sale price¥11,800
オーストラリア産レインボーラティスサンストーン 0.748ctルース

[On sale 9/26 at 10 PM] Australian Rainbow Lattice Sunstone 0.748ct Loose Stone Sale price¥6,980
マラウイ産ムーンストーン（マラウイムーンストーン） 1.388ctルース

[On sale 9/30 at 22:00] Malawi Moonstone 1.388ct Loose Stone Sale price¥8,800
マラウイ産ムーンストーン（マラウイムーンストーン） 1.966ctルース

[Available 9/26 at 10 PM] Malawi Moonstone Loose Gemstone 1.966ct Sale price¥11,800
マラウイ産ムーンストーン（マラウイムーンストーン） 2.340ctルース

[9/26 10:00 PM Release] Malawi Moonstone 2.340ct Loose Stone Sale price¥14,800
マラウイ産ムーンストーン（マラウイムーンストーン） 2.229ctルース

[Available 9/26 at 10 PM] Malawi Moonstone Loose Gemstone, 2.229ct Sale price¥9,800
ピクチャーアゲート 8.321ctルース

[Available 9/26 at 10 PM] Picture Agate 8.321ct Loose Stone Sale price¥9,800
See more list of new arrivals

《Products eligible for multiple purchase discount》

Limited quantity: Mozambique grape garnet, 1 loose stone (4 x 6 mm, pear-shaped cut) Multiple purchase discounts available

Limited quantity: Mozambique grape garnet, 1 loose stone (4 x 6 mm, pear-shaped cut) Multiple purchase discounts available Sale price¥3,980
[10/2 10 PM Sale] &lt;<limited to stones>&gt; Brazilian Bicolor Amethyst Gacha - 1 loose stone (approx. 9x7mm) &lt;<multi-purchase discount available>&gt;</multi-purchase></limited>

[10/2 10 PM Sale] <> Brazilian Bicolor Amethyst Gacha - 1 loose stone (approx. 9x7mm) <> Sale price¥3,980
[Available 10/2 at 10 PM] 《Limited to 16 stones》 Indian Andesine-Labradorite Gacha Loose Stone, Ojiki-cut (Avg. 1.3ct) 《Multi-purchase discounts available》

[Available 10/2 at 10 PM] 《Limited to 16 stones》 Indian Andesine-Labradorite Gacha Loose Stone, Ojiki-cut (Avg. 1.3ct) 《Multi-purchase discounts available》 Sale price¥2,580
[Limited to 9 stones] Garnet (KEN cut, 2.3-2.6mm) [Bulk purchase discount available]

[Limited to 9 stones] Garnet (KEN cut, 2.3-2.6mm) [Bulk purchase discount available] Sale price¥2,980
Brazilian Paraiba Tourmaline (Batalha Mine) Gacha 💎 Usually ¥45,800 With sorting, includes unheated. 《Multiple purchase discount available》

Brazilian Paraiba Tourmaline (Batalha Mine) Gacha 💎 Usually ¥45,800 With sorting, includes unheated. 《Multiple purchase discount available》 Sale price¥15,800
[Available 9/26 at 10 PM] <limited quantity> Hong Kong Sourcing Gacha (7 types including Tanzanite, Hauyne, Color-Change Sapphire, Bekily Blue Garnet, etc.) 1 stone (plus 1 Rainbow Obsidian) <multiple purchase discount available></multiple></limited>

[Available 9/26 at 10 PM] Hong Kong Sourcing Gacha (7 types including Tanzanite, Hauyne, Color-Change Sapphire, Bekily Blue Garnet, etc.) 1 stone (plus 1 Rainbow Obsidian) Sale price¥3,300
【9/4 10 PM Release】《Limited to 5 stones》Pyrite in Afghanite, approx. 2ct each《Multi-buy discount available》

【9/4 10 PM Release】《Limited to 5 stones》Pyrite in Afghanite, approx. 2ct each《Multi-buy discount available》 Sale price¥3,980
【Available 9/23 at 10 PM】《Limited to 6 stones》Rough Colombian Emerald (avg. 0.75ct) 《Multi-buy discount available》

【Available 9/23 at 10 PM】《Limited to 6 stones》Rough Colombian Emerald (avg. 0.75ct) 《Multi-buy discount available》 Sale price¥9,800
【9/22 22時販売】《限定10石》通常59,800円の甲州貴石切子plusthree「昴」ファイアオパールや29,800円のKEN氏コントラルスオパールのメキシコ産オパールガチャ1石（北海道産ロードクロサイト1石付き）《複数購入割引有》

【9/22 22時販売】《限定10石》通常59,800円の甲州貴石切子plusthree「昴」ファイアオパールや29,800円のKEN氏コントラルスオパールのメキシコ産オパールガチャ1石（北海道産ロードクロサイト1石付き）《複数購入割引有》 Sale price¥6,980
[9/22 10:00 PM Release] <limited to stones> 1 Imperial Topaz stone (includes Brazilian unheated sherry color) (comes with 1 London Blue Topaz stone) - Regular price 22,800 yen <multiple purchase discount available></multiple></limited>

[9/22 10:00 PM Release] 1 Imperial Topaz stone (includes Brazilian unheated sherry color) (comes with 1 London Blue Topaz stone) - Regular price 22,800 yen Sale price¥4,980
[Available 9/20 at 10 PM] 《Limited to 13 stones》 1 Raw Madagascar Apatite stone (avg. 3.8ct) 《Multi-buy discount available》

[Available 9/20 at 10 PM] 《Limited to 13 stones》 1 Raw Madagascar Apatite stone (avg. 3.8ct) 《Multi-buy discount available》 Sale price¥1,580
[On sale 9/23 at 22:00] &lt;4 stones only&gt; Brazilian moss green beryl loose stone (emerald cut, avg. 1.2ct) <multi-buy discount available></multi-buy>

[On sale 9/23 at 22:00] <4 stones only> Brazilian moss green beryl loose stone (emerald cut, avg. 1.2ct) Sale price¥3,980
[9/20 10 PM Sale] <limited to stones> Brazilian Moss Green Beryl Gacha (0.8ct average, Rose cut) <multi-buy discounts available></multi-buy></limited>

[9/20 10 PM Sale] Brazilian Moss Green Beryl Gacha (0.8ct average, Rose cut) Sale price¥2,980
【Available 9/21 at 10 PM】《Limited to 11 stones》KEN-cut approx. 3mm loose gemstone gacha (Colombian mint-color emerald, spinel, zircon, etc.)《Multi-purchase discount available》

【Available 9/21 at 10 PM】《Limited to 11 stones》KEN-cut approx. 3mm loose gemstone gacha (Colombian mint-color emerald, spinel, zircon, etc.)《Multi-purchase discount available》 Sale price¥2,980
[Available 9/20 at 10 PM] Limited to 7 pieces: Brazilian Batalha Paraiba Tourmaline & Elbaite rough stone gacha, featuring bicolor Paraiba (CuO: 2.7%, MnO: 2.0%) usually priced at 25,800 yen (multi-purchase discounts available).

[Available 9/20 at 10 PM] Limited to 7 pieces: Brazilian Batalha Paraiba Tourmaline & Elbaite rough stone gacha, featuring bicolor Paraiba (CuO: 2.7%, MnO: 2.0%) usually priced at 25,800 yen (multi-purchase discounts available). Sale price¥6,980
[Available 9/19 at 10 PM] &lt;9 sets only&gt; Rainbow Garnet rough &amp; loose stone set from Tenkawa, Nara (includes one hexagonal pyrite) <multi-buy discount available></multi-buy>

[Available 9/19 at 10 PM] <9 sets only> Rainbow Garnet rough & loose stone set from Tenkawa, Nara (includes one hexagonal pyrite) Sale price¥6,980
[Available 9/19 at 10 PM] 《Limited to 26 stones》 Oil-in-Quartz from Pakistan 《Multi-purchase discounts available》

[Available 9/19 at 10 PM] 《Limited to 26 stones》 Oil-in-Quartz from Pakistan 《Multi-purchase discounts available》 Sale price¥1,580
[Available 9/18 at 10 PM] 《Limited to 13 stones》 Afghanite loose stone from Afghanistan (average 2.0ct, cabochon cut) 《Multiple purchase discount available》

[Available 9/18 at 10 PM] 《Limited to 13 stones》 Afghanite loose stone from Afghanistan (average 2.0ct, cabochon cut) 《Multiple purchase discount available》 Sale price¥2,980
Pink Diamond Loot Box💎 Fancy Orange Pink 0.188ct and other Fancy-colored pink diamonds (all stones sorted or certified) 《Multiple purchase discounts available》

Pink Diamond Loot Box💎 Fancy Orange Pink 0.188ct and other Fancy-colored pink diamonds (all stones sorted or certified) 《Multiple purchase discounts available》 Sale price¥11,000
Limited to 10 Stones: Tanzanian Kornerupine (Pear Shape approx. 3x2mm) - Multi-Purchase Discount Available

Limited to 10 Stones: Tanzanian Kornerupine (Pear Shape approx. 3x2mm) - Multi-Purchase Discount Available Sale price¥2,980
[Available 9/12 at 10 PM] <limited to stones> Russian &amp; Brazilian Alexandrite Gacha (includes 1 Chrysoberyl stone from Mr. Saint-Germain) <multi-purchase discounts available></multi-purchase></limited>

[Available 9/12 at 10 PM] Russian & Brazilian Alexandrite Gacha (includes 1 Chrysoberyl stone from Mr. Saint-Germain) Sale price¥3,980
[On sale August 16th at 10 PM JST] Limited to 4 stones: Swiss Blue Topaz (Star of David/Hexagram Cut, approx. 8mm) [Multiple purchase discount available]

[On sale August 16th at 10 PM JST] Limited to 4 stones: Swiss Blue Topaz (Star of David/Hexagram Cut, approx. 8mm) [Multiple purchase discount available] Sale price¥4,980
《Limited to 12 Stones》 Pink Spinel from Tanzania (Approx. 3x4mm, Oval Cut) 《Multiple Purchase Discount Available》

《Limited to 12 Stones》 Pink Spinel from Tanzania (Approx. 3x4mm, Oval Cut) 《Multiple Purchase Discount Available》 Sale price¥4,980
【9/12 10 PM Release】《Limited to 16 Stones》 Blue Topaz: New "Milky Way Star Cut" by Mr. Sangé 《Multi-purchase discounts available》

【9/12 10 PM Release】《Limited to 16 Stones》 Blue Topaz: New "Milky Way Star Cut" by Mr. Sangé 《Multi-purchase discounts available》 Sale price¥5,980
【9/7 10:00 PM Sale】《Limited to 10 Stones》Diamond Gacha with a Chance to Win a Certified Diamond (All stones VS class or equivalent)《Multi-purchase discounts available》

【9/7 10:00 PM Sale】《Limited to 10 Stones》Diamond Gacha with a Chance to Win a Certified Diamond (All stones VS class or equivalent)《Multi-purchase discounts available》 Sale price¥3,980
【Available 9/7 at 10 PM】Blue Zircon Gacha featuring 2.4ct rose-cut Ratanakiri Blue Zircon and more (Limited to 10 stones) 《Multi-purchase discounts available》

【Available 9/7 at 10 PM】Blue Zircon Gacha featuring 2.4ct rose-cut Ratanakiri Blue Zircon and more (Limited to 10 stones) 《Multi-purchase discounts available》 Sale price¥3,980
See more products eligible for multiple purchase discounts

Bungo and Alchemist

K18 ダイヤモンド0.35ct フラワーモチーフリング鑑別書

[Item 22602768] [Color-Full] K18 0.35ct Diamond Ring with Appraisal Report Sale price¥128,000
Pt900 アイスブルーダイヤモンド・ ダイヤモンドリング鑑別書

[Item #22602735] [Colorifi] Pt900 Ice Blue Diamond (Treated) 0.24ct Diamond Ring with Appraisal Report Sale price¥89,800
Pt900 カラーチェンジサファイア0.446ct ダイヤモンド0.12ctリング鑑別書

[On sale 8/31 at 10 PM] [Colori] Pt900 Color-Change Sapphire 0.446ct Diamond 0.12ct Ring with Identification Report Sale price¥79,800
Pt900 スピネル 0.35ct・ダイヤモンド0.09ctペンダントトップ（ネックレストップ）鑑別書

[Item No. 22602792] [Colorify] Pt900 Spinel 0.35ct / Diamond 0.09ct Pendant Top (Necklace Top) with Appraisal Report Sale price¥39,800
K18 インペリアルトパーズ・ダイヤモンドリング鑑別書

[Item 22602770] K18 Imperial Topaz Ring with Appraisal Report Sale price¥128,000
K18WG クレサンベール 合成アレキサンドライト3.00ct プリンセスカット・ダイヤモンド0.12ct ペンダントトップ 鑑別書

[Item No. 22602776] [Colorify] K18WG Synthetic Alexandrite 3ct, Diamond 0.12ct Pendant Top (Necklace Top) with Appraisal Report Sale price¥98,000
K18WG ダイヤモンド 0.5ct ペンダントトップ（ネックレストップ）鑑別書

[Item 22602774] [Color-Full] K18WG 0.5ct Diamond Pendant Top (Necklace Top) with Appraisal Report Sale price¥35,800
K18WG ブルーサファイア ダイヤモンド0.051ctペンダントトップ（ネックレストップ）鑑別書

[22602720 listed] [Colorfury] K18WG Blue Sapphire Diamond 0.051ct Pendant Top (Necklace Top) with certificate Sale price¥39,800
Pt900 アレキサンドライト 0.33ct ダイヤモンド0.11ct Xモチーフ ペンダントトップ（ネックレストップ）鑑別書

[Item #22602717] [Colorful] Pt900 Alexandrite 0.33ct Diamond 0.11ct Pendant Top (Necklace Top) with certificate Sale price¥128,000
K18 ロシア産デマントイドガーネット（ホーステール認む） 3.5mm/0.155ct ダイヤモンド0.04ctリング鑑別書

[Available 9/25, 10:00 PM] [Coloriful] K18 Russian Demantoid Garnet (Horsetail inclusion verified) 3.5mm/0.155ct, Diamond 0.04ct Ring with Identification Report Sale price¥128,000
Pt900 ロイヤルブルーサファイア 0.84ct リング鑑別書

[On sale 9/25 at 22:00] [Color-free] Pt900 Royal Blue Sapphire 0.84ct Ring with Identification Report Sale price¥148,000
[Calafri] K18 Blood Coral 9.9mm Diamond Pendant Top (Necklace Top) with Certificate of Authenticity

[Calafri] K18 Blood Coral 9.9mm Diamond Pendant Top (Necklace Top) with Certificate of Authenticity Sale price¥79,800
【Calafuri】Pt900 Ice Blue Diamond (Treated) 1.00ct Ring

【Calafuri】Pt900 Ice Blue Diamond (Treated) 1.00ct Ring Sale price¥158,000
Pt950レッドベリル0.20ct・ダイヤモンド0.23ctリング鑑別書

[On sale 9/20 at 22:00] [Color-free] Pt950 Red Beryl 0.20ct / Diamond 0.23ct Ring with Appraisal Report Sale price¥98,000
K18 アクアマリン 0.65ct・ダイヤモンド0.02ctリング 鑑別カード

【Available 9/20 at 10:00 PM】 Colorfuli K18 Aquamarine 0.65ct & Diamond 0.02ct Ring with Identification Card Sale price¥89,800
K18WGダイヤモンド 0.09ct ペンダントトップ（ネックレストップ）

[On Sale 9/20 at 10 PM] [Colori] K18WG 0.09ct Diamond Treble Clef Motif Pendant Top (Necklace Top) Sale price¥39,800
Pt900/Pt850 ブラジル産パライバトルマリン 0.08ct（CuO:2.0%、MnO:1.1%）・ダイヤモンド 0.56ctペンダント（ネックレス）鑑別書

[Available 9/20 at 10 PM] [Colori] Pt900/Pt850 Brazilian Paraiba Tourmaline 0.08ct (CuO: 2.0%, MnO: 1.1%) & Diamond 0.56ct Pendant (Necklace) with Appraisal Report Sale price¥158,000
K10アクアマリン リング鑑別書

[Available 9/18, 10 PM] [Colorafuri] K10 Aquamarine Ring with Appraisal Report Sale price¥39,800
Pt900 ダイヤモンド1.00ct スリーストーンリング 鑑別書

[Available 9/30 at 10 PM] [Colori] Pt900 1.00ct Diamond Three-Stone Ring with Appraisal Report Sale price¥128,000
K18WG マルチカラーサファイア0.83ct・ダイヤモンド0.70ct 3WAYクロスペンダント（ネックレス）鑑別書

[Available 9/25, 10 PM] [Color-free] K18WG Multicolor Sapphire 0.83ct / Diamond 0.70ct 3-Way Cross Pendant (Necklace) with Appraisal Report Sale price¥198,000
Pt900 ティールグリーンサファイア 0.46ct ダイヤモンド0.10ctリング鑑別書

[Available 9/24 10:00 PM] [Colori] Pt900 Teal Green Sapphire 0.46ct Diamond 0.10ct Ring with Appraisal Report Sale price¥89,800
Pt900 エメラルド 0.4ct ダイヤモンド0.33ctペンダントトップ（ネックレストップ）鑑別書

[Available 9/24 at 10 PM] [Colori] Pt900 Emerald 0.40ct & Diamond 0.33ct Pendant Top (Necklace Top) with Appraisal Report Sale price¥79,800
Pt900 トルマリンキャッツアイ 4.598ct ダイヤモンド0.20ctリング 中央宝石研究所ソーティング

[Available 9/18 at 10:00 PM] [Coloriful] Pt900 Tourmaline Cat's Eye 4.598ct Diamond 0.20ct Ring Sale price¥98,000
Pt900/Pt850 ピンクダイヤモンド 0.03ct・ダイヤモンド0.30ctペンダント（ネックレス）ミニ鑑別カード

[On sale 9/24 at 10 PM] [Colori] Pt900/Pt850 Pink Diamond 0.03ct & Diamond 0.30ct Pendant (Necklace) with Mini Identification Card Sale price¥79,800
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KARATZ collaboration
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jewelry

K18WG ターコイズ 15.78ct/15.73ct ピアス 鑑別書
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Custom-made with a choice of stones

1石から選ぶオーダーメイド《リ ング》申し込みページ ～ Solo(ソロ) ～ - カラッツSTORE
1石から選ぶオーダーメイド《ペ ンダント》申し込み～ SOLO(ソロ) ～ - カラッツSTORE
1石から選ぶオーダーメイド《ピ アス》申し込みページ ～ Solo(ソロ) ～ - カラッツSTORE
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KARATZ・Five Commitments

So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

KARATZ's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

KARATZ Books

These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.

jeweler's tools

For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.