カラッツSTORE

Login
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

2026/10/06

[Notice] Regarding the shipment of orders placed on or after Friday, September 4th

2026/07/07

[Media Coverage] KARATZ Jewelry Featured on "Ame Talk!"

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
coming soon Limited to 14 stones: Lab-grown diamond (cabochon cut, approximately 2.3mm) - 1 loose stone. Discounts available for multiple purchases.

Limited to 14 stones: Lab-grown diamond (cabochon cut, approximately 2.3mm) - 1 loose stone. Discounts available for multiple purchases. Sale priceFrom ¥4,580
coming soon 【10/9 22時販売】《数量限定》カボションカットのラボグロウンダイヤモンド（合成ダイヤモンド）1石ルース（CVD/2.4-2.7mm）《複数購入割引有》

【10/9 22時販売】《数量限定》カボションカットのラボグロウンダイヤモンド（合成ダイヤモンド）1石ルース（CVD/2.4-2.7mm）《複数購入割引有》 Sale priceFrom ¥5,280
coming soon 【12564475掲載】インド産グリーンムーンストーン 3.445ctルース

[Item 12564475] Green Moonstone from India, 3.445ct loose stone Sale price¥16,800
coming soon [Item 12564551] Afghan Hauyne 0.082ct Loose Stone

[Item 12564551] Afghan Hauyne 0.082ct Loose Stone Sale price¥12,800
coming soon [12564548 Listed] Afghan Hauyne 0.183ct Loose Stone

[12564548 Listed] Afghan Hauyne 0.183ct Loose Stone Sale price¥19,800
coming soon [Item No. 22602818] [Colorfully] 18K Akoya Pearl and 0.02ct Diamond Brooch with Certificate of Authenticity

[Item No. 22602818] [Colorfully] 18K Akoya Pearl and 0.02ct Diamond Brooch with Certificate of Authenticity Sale price¥59,800
coming soon [Item 22602811] [Coloriful] Pt900 Pink Sapphire 0.42ct Diamond 0.05ct Ring with Appraisal Report

[Item 22602811] [Coloriful] Pt900 Pink Sapphire 0.42ct Diamond 0.05ct Ring with Appraisal Report Sale price¥59,800
coming soon [Posted on 22602705] [Colorful] K18WG Diamond 0.5ct Pendant Top (Necklace Top)

[Posted on 22602705] [Colorful] K18WG Diamond 0.5ct Pendant Top (Necklace Top) Sale price¥35,800
coming soon [Item 22602804][Colori] K18 0.211ct Diamond & 0.35ct Diamond Pendant (Necklace)

[Item 22602804][Colori] K18 0.211ct Diamond & 0.35ct Diamond Pendant (Necklace) Sale price¥158,000
coming soon [Item 22602808] [Colori] K18WG Diamond Pendant (Necklace)

[Item 22602808] [Colori] K18WG Diamond Pendant (Necklace) Sale price¥148,000
coming soon [Item No. 22602806] [Colorify] K18/K18WG 0.3ct Diamond and 0.26ct Diamond Pendant (Necklace)

[Item No. 22602806] [Colorify] K18/K18WG 0.3ct Diamond and 0.26ct Diamond Pendant (Necklace) Sale price¥158,000
coming soon 【Item 12564389】 Colombian Emerald with Pyrite and Mica Inclusions, 0.268ct Loose Gemstone

【Item 12564389】 Colombian Emerald with Pyrite and Mica Inclusions, 0.268ct Loose Gemstone Sale price¥18,800
coming soon [Item 12564461] Dominican Republic Larimar 3.420ct Loose Gemstone

[Item 12564461] Dominican Republic Larimar 3.420ct Loose Gemstone Sale price¥12,800
coming soon [Item 12564471] Australian Boulder Opal 4.444ct Loose Gemstone

[Item 12564471] Australian Boulder Opal 4.444ct Loose Gemstone Sale price¥17,800
coming soon [Item 12564375] Mongolian Andesine 1.408ct Loose Gemstone

[Item 12564375] Mongolian Andesine 1.408ct Loose Gemstone Sale price¥14,800
coming soon [Item 12564612] Unheated Bicolor Sapphire from Windsor, Tanzania, 0.620ct Loose Gemstone

[Item 12564612] Unheated Bicolor Sapphire from Windsor, Tanzania, 0.620ct Loose Gemstone Sale price¥75,800
coming soon [Item 12564459] Nepalese Kyanite 1.017ct Loose Gemstone

[Item 12564459] Nepalese Kyanite 1.017ct Loose Gemstone Sale price¥9,800
coming soon [Listing 12564464] Russian Phenakite 0.366ct Loose Stone

[Listing 12564464] Russian Phenakite 0.366ct Loose Stone Sale price¥18,800
coming soon [Item 12564466] Color Shift Amethyst 1.607ct Loose Stone

[Item 12564466] Color Shift Amethyst 1.607ct Loose Stone Sale price¥9,800
coming soon 【12564476掲載】インド産ブラックムーンストーン 0.568ctルース

[Item 12564476] Black Moonstone from India, 0.568ct loose stone Sale price¥8,800
coming soon Malawi Moonstone (Malawi Moonstone) 2.121ct Loose Stone

Malawi Moonstone (Malawi Moonstone) 2.121ct Loose Stone Sale price¥12,800
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
[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
Sold out 【10/5 22時販売】《数量限定・10月キャンペーン開催記念》レアストーンガチャ💎 全石鑑別書付き0.5ctフォスフォフィライト・0.2ctベニトアイト・アレキサンドライトなど8種類《複数購入割引有》

【10/5 22時販売】《数量限定・10月キャンペーン開催記念》レアストーンガチャ💎 全石鑑別書付き0.5ctフォスフォフィライト・0.2ctベニトアイト・アレキサンドライトなど8種類《複数購入割引有》
【9/ 22:00 Release】 《Limited to 13 stones》 Bicolor Sapphire, Avg 0.27ct 《Multi-buy discount available》

【9/ 22:00 Release】 《Limited to 13 stones》 Bicolor Sapphire, Avg 0.27ct 《Multi-buy discount available》 Sale price¥7,980
[Lottery Sale ②_202608_04] Unheated Kashmir Sapphire 0.710ct Loose Stone GIA

[Lottery Sale ②_202608_04] Unheated Kashmir Sapphire 0.710ct Loose Stone GIA Sale price¥298,000
[Lottery Sale_12] [For Winners Only] [Ref: 32501798] Internally Flawless Diamond (H&C) 4.2mm/0.280ct Loose Stone (D, IF, 3Excellent H&C) GIA

[Lottery Sale_12] [For Winners Only] [Ref: 32501798] Internally Flawless Diamond (H&C) 4.2mm/0.280ct Loose Stone (D, IF, 3Excellent H&C) GIA Sale price¥138,000
【10/5 22時販売】インターナリーフローレスダイヤモンド（H&C） 4.7mm/0.413ctルース(D, IF, 3Excellent H&C)　GIA&中宝

【10/5 22時販売】インターナリーフローレスダイヤモンド（H&C） 4.7mm/0.413ctルース(D, IF, 3Excellent H&C)　GIA&中宝 Sale price¥178,000
[Item 12564297] Phenakite from Malyshevo, Russia, 1.491ct Loose Stone

[Item 12564297] Phenakite from Malyshevo, Russia, 1.491ct Loose Stone Sale price¥53,800
【12564165掲載】コロンビア産ノンオイルエメラルド 0.290ctルース

[Sat, Sep 5, 10:00 AM Deadline: Lottery Sale_10] Colombian Non-Oiled Emerald 0.290ct Loose Stone GIA Sale price¥178,000
【12564470掲載】オーストラリア産ブラックオパール 0.261ctルース

[Item 12564470] Australian Black Opal 0.261ct Loose Gemstone Sale price¥9,800
【12564332掲載】ケニア産□ケニア産ゴールドシーンサファイア 0.859ctルース

[Item 12564332] Kenyan Gold Sheen Sapphire 0.859ct Loose Gemstone Sale price¥59,800
【12564473掲載】ブラジル産ティンカーベルクォーツ（ピンクファイヤークォーツ） 4.602ctルース

[Item 12564473] Brazilian Tinkerbell Quartz (Pink Fire Quartz) 4.602ct Loose Gemstone Sale price¥22,800
Malawi Moonstone 1.640ct Loose Stone

Malawi Moonstone 1.640ct Loose Stone Sale price¥9,800
Malawi Moonstone (Malawi moonstone) 1.886ct loose stone

Malawi Moonstone (Malawi moonstone) 1.886ct loose stone Sale price¥11,800
Show more

List of new arrivals

[Lottery Sale_12] [For Winners Only] [Ref: 32501798] Internally Flawless Diamond (H&C) 4.2mm/0.280ct Loose Stone (D, IF, 3Excellent H&C) GIA

[Lottery Sale_12] [For Winners Only] [Ref: 32501798] Internally Flawless Diamond (H&C) 4.2mm/0.280ct Loose Stone (D, IF, 3Excellent H&C) GIA Sale price¥138,000
[Lottery Sale ②_202608_04] Unheated Kashmir Sapphire 0.710ct Loose Stone GIA

[Lottery Sale ②_202608_04] Unheated Kashmir Sapphire 0.710ct Loose Stone GIA Sale price¥298,000
【10/5 22時販売】インターナリーフローレスダイヤモンド（H&C） 4.7mm/0.413ctルース(D, IF, 3Excellent H&C)　GIA&中宝

【10/5 22時販売】インターナリーフローレスダイヤモンド（H&C） 4.7mm/0.413ctルース(D, IF, 3Excellent H&C)　GIA&中宝 Sale price¥178,000
【12564165掲載】コロンビア産ノンオイルエメラルド 0.290ctルース

[Sat, Sep 5, 10:00 AM Deadline: Lottery Sale_10] Colombian Non-Oiled Emerald 0.290ct Loose Stone GIA Sale price¥178,000
【12564102掲載】スリランカ産ピンクサファイア 0.142ctルース

[Ref: 12564102] Pink Sapphire from Sri Lanka, 0.142ct loose stone Sale price¥9,800
[12563017 listed] Pink Sapphire 0.143ct Loose Stone

[12563017 listed] Pink Sapphire 0.143ct Loose Stone Sale price¥12,800
[Item 12564297] Phenakite from Malyshevo, Russia, 1.491ct Loose Stone

[Item 12564297] Phenakite from Malyshevo, Russia, 1.491ct Loose Stone Sale price¥53,800
[Ref: 12564306] Brazilian Emerald Cat's Eye 0.582ct Loose Gemstone

[Ref: 12564306] Brazilian Emerald Cat's Eye 0.582ct Loose Gemstone Sale price¥22,800
【12564329掲載】ケニア産ケニア産ゴールドシーンサファイア（スターサファイア） 0.311ctルース

[Item 12564329] Kenyan Gold Sheen Sapphire (Star Sapphire) 0.311ct Loose Stone Sale price¥24,800
【12564332掲載】ケニア産□ケニア産ゴールドシーンサファイア 0.859ctルース

[Item 12564332] Kenyan Gold Sheen Sapphire 0.859ct Loose Gemstone Sale price¥59,800
モンゴル産アンデシン 1.935ctルース

[Available 10/4, 10:00 PM] Mongolian Andesine 8.1mm/1.935ct Loose Gemstone Sale price¥18,800
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
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
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
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
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
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
高知県産血赤珊瑚 9.962ctルース

[On sale 10/4 at 22:00] Kochi Prefecture oxblood coral 9.962ct loose stone Sale price¥59,800
高知県産血赤珊瑚 7.253ctルース

[On sale 10/4 at 10 PM] Kochi Prefecture Blood Red Coral 7.253ct Loose Stone Sale price¥49,800
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
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
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
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
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
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
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
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
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
モンゴル産バイカラーアンデシン 1.861ctルース

[10/4 10:00 PM Release] Mongolian Bicolor Andesine 8.0mm/1.861ct Loose Gemstone Sale price¥18,800
モンゴル産カラーチェンジアンデシン 1.829ctルース

[Available 10/4, 10:00 PM] Mongolian Color-Change Andesine 8.0mm/1.829ct Loose Stone Sale price¥18,800
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
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
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
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
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
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
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
See more list of new arrivals

《Products eligible for multiple purchase discount》

【9/ 22:00 Release】 《Limited to 13 stones》 Bicolor Sapphire, Avg 0.27ct 《Multi-buy discount available》

【9/ 22:00 Release】 《Limited to 13 stones》 Bicolor Sapphire, Avg 0.27ct 《Multi-buy discount available》 Sale price¥7,980
[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
[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
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
[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 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
[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
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
【10/3 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
[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
[10/2 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
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
Show more

KARATZ collaboration
See all KARATZ collaborations

jewelry
View all jewelry

Shop by birthstone

January

February

March

April

May

June

July

August

September

October

November

December

Search by category

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
Learn more about custom-made products

Customer Testimonials

4.94 ★ (63)
Verified
See more

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.