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[Sales Lottery Closes: Thursday, June 18th, 10 AM] 10 carefully selected items including Jedi Spinel and Bekily Blue Garnet
June Birthstones: Moonstone, Pearl, Alexandrite
Custom-made jewelry with stones
Mini Bottle Keychain Filled with Natural Stones (Choose from 11 Colors)
KARATZ Books

NEWS

2026/06/13

[Deadline: Thursday, June 18th, 10 am for lottery sale] 10 carefully selected items including Jedi Spinel, Bekily Blue Garnet, Kashmir Sapphire, and Burma Sapphire

2026/06/09

[Notice] Shipping for orders placed on or after Friday, June 5th

[Lottery Sale: Applications close Thursday, June 18th at 10:00 AM]

coming soon [Lottery Sale_0612_01] Madagascar Bekily Blue Garnet (Color Change Garnet) 0.542ct Loose

[Lottery Sale_0612_01] Madagascar Bekily Blue Garnet (Color Change Garnet) 0.542ct Loose Sale price¥79,800
coming soon 【12563343掲載】カシミール産非加熱サファイア 0.120ctルース

[Lottery Sale_0612_05] Unheated Kashmir Sapphire 0.120ct Loose Stone GIA Sale price¥59,800
coming soon 【12563345掲載】カシミール産非加熱サファイア 0.220ctルース

[Lottery Sale_0612_06] Unheated Kashmir Sapphire 0.220ct Loose Stone GIA Sale price¥98,000
coming soon 【12563112掲載】ミャンマー産ジェダイスピネル 0.380ctルース

[Lottery Sale_0612_02] Myanmar Jedi Spinel 0.380ct Loose Stone Sale price¥35,800
coming soon 【12563109掲載】イエローサファイア 2.150ctルース

[Lottery Sale_0612_09] Yellow Sapphire 2.150ct Loose Gemstone GIT Sale price¥158,000
coming soon 【12563190掲載】非加熱パープルサファイア 0.775ctルース

[Lottery Sale_0612_08] Unheated Purple Sapphire 0.775ct Loose Gemstone - Houseki Kyo Sale price¥59,800
coming soon 【12563189掲載】ビルマ産非加熱ブルーサファイア 0.177ctルース

[Lottery Sale_0612_07] Untreated Burmese Blue Sapphire 0.177ct Loose Gemstone (Houseki Kyo) Sale price¥69,800
coming soon [Listed as 12562693] Malawi Bicolor Zircon 1.434ct Loose

[Listed as 12562693] Malawi Bicolor Zircon 1.434ct Loose Sale price¥79,800
coming soon 【12563195掲載】コンゴ産ピンクトルマリン 1.056ctルース

[Lottery Sale_0612_03] [Sakura Cut] Pink Tourmaline from Congo 7.0mm/1.056ct Loose Stone with Certificate Sale price¥49,800
coming soon 【Lottery Sale_0612_04】【Dandelion Cut】Mali Garnet (Grossular/Andradite Garnet) from Mali 6.0mm/1.018ct Loose Stone with Certificate

【Lottery Sale_0612_04】【Dandelion Cut】Mali Garnet (Grossular/Andradite Garnet) from Mali 6.0mm/1.018ct Loose Stone with Certificate Sale price¥49,800
See Lottery Sale List

June 15 (Mon) 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 [On sale June 19th, 10 PM] Authentic Gemstone Encyclopedia 3D Stickers Vol. 1 "The Big Five Gemstones"

[On sale June 19th, 10 PM] Authentic Gemstone Encyclopedia 3D Stickers Vol. 1 "The Big Five Gemstones" Sale price¥660
coming soon [On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"

[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available" Sale price¥7,980
coming soon [On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available"

[On sale May 23rd at 10 PM] "Limited 9 Stones - Shinjuku Pop-Up Celebration" All stones with Central Gem Laboratory sorting (3.0-3.5mm, VS-SI clarity) "Multiple purchase discount available" Sale price¥6,980
coming soon 【6/19 22時販売】コロンビア産トラピッチェエメラルド 0.183ctルース

【6/19 22時販売】コロンビア産トラピッチェエメラルド 0.183ctルース Sale price¥39,800
coming soon 【6/19 22時販売】モザンビーク産エルバイトトルマリン/ピンクトルマリン 1.126ctルース（CuO:0.2%,MnO:2.4%）

【6/19 22時販売】モザンビーク産エルバイトトルマリン/ピンクトルマリン 1.126ctルース（CuO:0.2%,MnO:2.4%） Sale price¥55,800
coming soon [On sale June 17th, 10 PM] Tanzanian Tanzanite 0.372ct Loose Stone

[On sale June 17th, 10 PM] Tanzanian Tanzanite 0.372ct Loose Stone Sale price¥14,800
coming soon 【12563291掲載】マダガスカル産アンデシン・ラブラドライト（通称名 レインボームーンストーン） 1.904ctルース

【Sales start June 16, 10 PM JST】Madagascar Andesine-Labradorite (Common Name: Rainbow Moonstone) 1.904 ct Loose Stone Sale price¥29,800
coming soon ミャンマー産レッドスピネル 0.214ctルース

[Sales start 10 PM on June 16] Myanmar Red Spinel 3.5mm/0.214ct Loose Gemstone Sale price¥9,800
coming soon [Sale starts June 16th at 10 PM] Myanmar Red Spinel 3.3mm/0.172ct Loose Stone

[Sale starts June 16th at 10 PM] Myanmar Red Spinel 3.3mm/0.172ct Loose Stone Sale price¥8,800
coming soon [Sale starts June 16th, 10 PM JST] Myanmar Red Spinel 0.234ct Loose Gemstone

[Sale starts June 16th, 10 PM JST] Myanmar Red Spinel 0.234ct Loose Gemstone Sale price¥12,800
coming soon [On Sale June 16, 10 PM] Loose 0.249ct Myanmar Red Spinel

[On Sale June 16, 10 PM] Loose 0.249ct Myanmar Red Spinel Sale price¥12,800
coming soon [Sale June 16th, 10 PM] Myanmar Red Spinel 0.453ct Loose Stone

[Sale June 16th, 10 PM] Myanmar Red Spinel 0.453ct Loose Stone Sale price¥19,800
coming soon [Sales on 6/16 at 10 PM] Myanmar Red Spinel 0.578ct Loose Gemstone

[Sales on 6/16 at 10 PM] Myanmar Red Spinel 0.578ct Loose Gemstone Sale price¥19,800
coming soon [On sale June 17th at 10 PM] Canadian Eudialyte 2.4mm/0.052ct Loose Stone with Appraisal

[On sale June 17th at 10 PM] Canadian Eudialyte 2.4mm/0.052ct Loose Stone with Appraisal Sale price¥15,800
coming soon パロットクリソベリルキャッツアイ 0.792ctルース

[On sale June 17th at 10 PM] Indian Parrot Chrysoberyl Cat's Eye 0.792ct Loose Stone Sale price¥29,800
coming soon ブラジル産スイスブルートパーズ 1.025ctルース

[Sale on June 17th at 10 PM] Brazilian Swiss Blue Topaz 1.025ct Loose Stone Sale price¥12,800
Sold out [Listed on 12563260] Rough diamond (sawable) from Botswana, 0.118ct

[Listed on 12563260] Rough diamond (sawable) from Botswana, 0.118ct
coming soon マダガスカル産バイカラーサファイア 0.271ctルース

Madagascar bicolor sapphire 0.271ct loose stone Sale price¥6,980
coming soon マダガスカル産バイカラーサファイア 0.607ctルース

Madagascar Bi-color Sapphire 0.607ct Loose Stone Sale price¥14,800
coming soon [Sale starts June 18th at 10 PM] [Colorful] K18PG Benitoite 0.03ct Ring with Certificate

[Sale starts June 18th at 10 PM] [Colorful] K18PG Benitoite 0.03ct Ring with Certificate Sale price¥39,800
coming soon 【22602636掲載】【カラフリ】K18 アコヤパール リング

[22602636 Published] [Carafuli] K18 Akoya Pearl Ring Sale price¥49,800
coming soon 【22602641掲載】【カラフリ】K18WG ダイヤモンド ペンダントトップ（ネックレストップ）

[Available June 18th at 10 PM] [Colorful] K18WG Diamond 1.03ct Pendant Top Sale price¥128,000
coming soon 【22602640掲載】【カラフリ】K18/SILVER/Pd アメジスト ペンダントトップ（ネックレストップ）

[On Sale June 18, 10 PM] [Karafuri] K18/SILVER/Pd Amethyst, Imperial Topaz Pendant Top (Necklace Top) with Appraisal Report Sale price¥19,800
coming soon [22602639 Posted] [Calafuri] K18 Amber/Copal Pendant Top (Necklace Top)

[22602639 Posted] [Calafuri] K18 Amber/Copal Pendant Top (Necklace Top) Sale price¥8,800
coming soon [Sale starts 6/18 at 10 PM] Colorful Pt900 Synthetic Alexandrite 1.08ct Diamond 0.06ct Pendant Top (Necklace Top) with Appraisal Certificate

[Sale starts 6/18 at 10 PM] Colorful Pt900 Synthetic Alexandrite 1.08ct Diamond 0.06ct Pendant Top (Necklace Top) with Appraisal Certificate Sale price¥59,800
coming soon [22602635 listed] [Calafuri] K18 Rhodochrosite 0.77ctct Ring

[22602635 listed] [Calafuri] K18 Rhodochrosite 0.77ctct Ring Sale price¥39,800
coming soon [22602631 Posted] [Coloreful] Pt900 Blue Sapphire 1.05ctct Ring

[22602631 Posted] [Coloreful] Pt900 Blue Sapphire 1.05ctct Ring Sale price¥98,000
coming soon [Listed 22602633] [Colorful] Pt900/K18 Diamond 0.22ct Ring

[Listed 22602633] [Colorful] Pt900/K18 Diamond 0.22ct Ring Sale price¥98,000
coming soon 【6/20 22時販売】ジンバブエ産グリーンダイヤモンド原石（ソーヤブル） 0.228ct原石（トライゴン）　

【6/20 22時販売】ジンバブエ産グリーンダイヤモンド原石（ソーヤブル） 0.228ct原石（トライゴン）　 Sale price¥79,800
[Sale June 15th 10 PM JST] Afghanistan Hauyne 0.098ct Loose Stone with Gemstone Identification Report

[Sale June 15th 10 PM JST] Afghanistan Hauyne 0.098ct Loose Stone with Gemstone Identification Report Sale price¥25,800
[On sale June 15th at 10 PM] Natural Kyanite from Nepal 2.863ct Loose (Royal Blue Color)

[On sale June 15th at 10 PM] Natural Kyanite from Nepal 2.863ct Loose (Royal Blue Color) Sale price¥15,800
【Sales start: June 15, 10 PM JST】Almandine Garnet from Tanzania 0.938ct Loose Stone

【Sales start: June 15, 10 PM JST】Almandine Garnet from Tanzania 0.938ct Loose Stone Sale price¥12,800
[Sales begin June 15th, 10 PM] Myanmar Red Spinel 3.5mm/0.174ct Loose Stone

[Sales begin June 15th, 10 PM] Myanmar Red Spinel 3.5mm/0.174ct Loose Stone Sale price¥7,980
マダガスカル産バイカラーサファイア 0.506ctルース

[On sale June 14, 10 PM JST] Madagascar Bi-Color Sapphire 4.5mm/0.506ct Loose Stone Sale price¥7,980
マダガスカル産バイカラーサファイア 0.765ctルース

【Sales start June 14, 10 PM JST】Madagascar Bi-Color Sapphire 5.4mm/0.765ct Loose Sale price¥9,800
ミャンマー産レッドスピネル 0.194ctルース

[On sale June 14th at 10 PM] Myanmar Red Spinel 3.4mm/0.194ct Loose Stone Sale price¥9,800
Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.

Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases. Sale price¥3,980
Limited to 8 stones: 1 loose Brazilian ametrine (concave cut, average 10 carats) Multiple purchase discounts available

Limited to 8 stones: 1 loose Brazilian ametrine (concave cut, average 10 carats) Multiple purchase discounts available Sale price¥3,980
[On Sale June 13, 10 PM] [Limited to 2 Stones] Brown Diamond (4mm/0.3ct, with certificate) [Multiple Purchase Discount Available]

[On Sale June 13, 10 PM] [Limited to 2 Stones] Brown Diamond (4mm/0.3ct, with certificate) [Multiple Purchase Discount Available] Sale price¥5,980
[On sale May 24th at 10 PM] "Limited to 12 Stones" Blue Gemstone Gacha 💎 Brazil Paraiba Tourmaline (CuO: 1.5%, MnO: 3.2%) and Zimbabwe Euclase, normally priced at ¥35,800, and more! (Multiple purchase discount available)

[On sale May 24th at 10 PM] "Limited to 12 Stones" Blue Gemstone Gacha 💎 Brazil Paraiba Tourmaline (CuO: 1.5%, MnO: 3.2%) and Zimbabwe Euclase, normally priced at ¥35,800, and more! (Multiple purchase discount available) Sale price¥3,980
[On Sale 10 PM, June 14th] Botswana Rough Diamond (Sawable) 0.090ct (Trigon)

[On Sale 10 PM, June 14th] Botswana Rough Diamond (Sawable) 0.090ct (Trigon) Sale price¥22,800
アンダリュサイト 0.347ctルース

【Sales start June 14, 10 PM JST】Andalusite from Spain 4.5mm/0.347ct Loose Sale price¥8,800
アンダリュサイト 0.416ctルース

【On sale June 14, 10 PM】Spanish Andalusite 0.416ct Loose Stone Sale price¥9,800
オーストラリア産ブラックオパール 1.080ctルース

[On sale June 14th at 10 PM] Australian Black Opal 1.080ct Loose Stone Sale price¥39,800
マダガスカル産アパタイトキャッツアイ 1.734ctルース

[On sale June 14th, 10 PM JST] Madagascar Apatite Cat's Eye 1.734ct Loose Stone, Nissaihou Sale price¥9,800
パキスタン産ラズライト（天藍石） 0.103ctルース

[On sale June 13th at 10 PM] Pakistani Lapis Lazuli (Lazurite) 0.103ct Loose Stone with Certification Sale price¥19,800
ブラジル産カナリーイエロークリソベリル 0.672ctルース

[On sale June 14, 10 PM JST] Brazilian Canary Yellow Chrysoberyl 0.672 ct Loose Gemstone Sale price¥18,800
Show more

List of new arrivals

パキスタン産ラズライト（天藍石） 0.103ctルース

[On sale June 13th at 10 PM] Pakistani Lapis Lazuli (Lazurite) 0.103ct Loose Stone with Certification Sale price¥19,800
合成アレキサンドライト 1.381ctルース

[On sale June 12th at 10 PM] Synthetic Alexandrite 1.381ct Loose Stone Sale price¥25,800
ブラジル産サンタマリアアクアマリン 0.215ctルース

[On Sale June 13th, 10 PM JST] Brazilian Santa Maria Aquamarine 0.215 ct Loose Stone with Appraisal Report Sale price¥15,800
Pt900ベニトアイト0.152ct・ダイヤモンド0.58ctリング

[Sale on 6/8 at 10 PM] Pt900 Benitoite 0.152ct / Diamond 0.58ct Ring Sale price¥188,000
スファレライト 3.980ctルース

Spanish Sphalerite 9.2mm/3.980ct loose stone Sale price¥49,800
モザンビーク産ピンクトルマリン 2.944ctルース

[12550851] 2.944ct Mozambique pink tourmaline loose stone Sale price¥39,800
ベリルキャッツアイ 32.703ctルース

[12552038] Beryl Cat's Eye 32.703ct Loose Stone Sale price¥98,000
タンザニア産ゾイサイト 0.203ctルース

[12550865] 0.203ct loose zoisite from Tanzania Sale price¥5,980
ジンバブエ産ブルーアパタイト（UVタイプ） 1.312ctルース

[12551312] Zimbabwean Blue Apatite (UV Type) 1.312ct Loose Stone Sale price¥8,800
スリランカ産アイオライト 14.158ctルース 日独鑑

[12552306] Iolite 14.158ct loose stone Sale price¥258,000
雲母インクォーツ 0.758ctルース

Mica in Quartz 0.758ct Loose Stone Sale price¥5,980
オーストラリア産ブラックオパール 3.890ctルース

[12551148] Australian black opal 3.890ct loose stone Sale price¥69,800
ミャンマー産ヴァイオレットスピネル 0.426ctルース

Myanmar Violet Spinel 0.426ct Loose Sale price¥8,800
アメリカ産レッドベリル 0.147ctルース

American Red Beryl 0.147ct Loose Sale price¥35,800
非加熱ブラジル産パライバトルマリン 0.065ctルース（CuO:1.6%、MnO:2.4%）

0.065ct loose Paraiba tourmaline from Brazil (CuO: 1.6%, MnO: 2.4%) Sale price¥49,800
レッドベリル 0.132ctルース

American Red Beryl 0.132ct Loose Sale price¥33,800
Sold out ロシア産ダイヤモンド原石（ソーヤブル） 0.117ctルース

Russian rough diamond (sawable) 0.117ct loose
南アフリカ産ダイヤモンド原石（ソーヤブル） 0.110ct原石

South African diamond rough (sawable) 0.110ct rough Sale price¥22,800
南アフリカ産ダイヤモンド原石（ソーヤブル） 0.085ct原石

South African diamond rough (sawable) 0.085ct rough Sale price¥15,800
マダガスカル産スペサタイトガーネット 1.053ctルース

Spessartite Garnet from Madagascar 1.053ct loose stone Sale price¥29,800
アンデシン・ラブラドライト（通称名 レインボームーンストーン） 0.585ctルース

Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.585ct loose stone Sale price¥12,800
デンドリティッククォーツ 4.587ctルース

Brazilian dendritic quartz 4.587ct loose stone Sale price¥9,800
ブラジル産ピンクトルマリン 0.470ctルース

Brazilian Pink Tourmaline 0.470ct Loose Stone Sale price¥9,800
ブラジル産ピンクトルマリン 0.968ctルース

Brazilian pink tourmaline 0.968ct loose stone Sale price¥18,800
ピンクトルマリン 0.558ctルース

Tanzanian pink tourmaline 0.558ct loose stone Sale price¥9,800
スリランカ産スターサファイア 2.093ctルース

Sri Lankan Star Sapphire 2.093ct Loose Sale price¥8,800
スリランカ産スターサファイア 1.339ctルース

Sri Lankan Star Sapphire 1.339ct Loose Sale price¥12,800
スリランカ産スターサファイア 1.682ctルース

Sri Lankan Star Sapphire 1.682ct Loose Sale price¥12,800
スリランカ産スターサファイア 1.225ctルース

Sri Lankan Star Sapphire 1.225ct Loose Sale price¥12,800
Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite)

Bicolor Zoisite 1.100ct Loose Stone (Bicolor Tanzanite) Sale price¥18,800
ラベンダータンザナイト 0.784ctルース

Lavender Tanzanite 0.784ct loose stone Sale price¥12,800
メキシコ産オパール 0.499ctルース

Mexican Opal 0.499ct Loose Sale price¥3,980
メキシコ産オパール 0.854ctルース

Mexican Opal 0.854ct Loose Sale price¥5,980
スカイブルートパーズ 1.051ctルース

Sky blue topaz 1.051ct loose stone Sale price¥8,800
American red beryl 0.143ct loose

American red beryl 0.143ct loose Sale price¥35,800
レピドクロサイトインクォーツ 0.532ctルース

Lepidocrocite in quartz 0.532ct loose Sale price¥6,980
バイカラートルマリン 1.329ctルース

Bicolor tourmaline 1.329ct loose Sale price¥9,800
バイカラートルマリン 0.429ctルース

Bicolor tourmaline 0.429ct loose Sale price¥5,980
バイカラートルマリン 0.378ctルース

Bicolor Tourmaline 0.378ct Loose Stone (Hexagonal Cut) Sale price¥8,800
ピンクトルマリン 0.819ctルース

Pink tourmaline 0.819ct loose Sale price¥9,800
ピンクトルマリン 0.539ctルース

Pink tourmaline 0.539ct loose stone (heart shape) Sale price¥9,800
オレゴンサンストーン 0.462ctルース

Oregon Sunstone 0.462ct loose Sale price¥5,980
バイカラーサファイア 1.040ctルース

[On sale June 8th, 10 PM] Bi-Color Sapphire 1.040 ct Loose Gemstone GIT Sale price¥29,800
See more list of new arrivals

《Products eligible for multiple purchase discount》

Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases.

Limited to 7 stones: 1 loose Andesine Labradorite stone from Madagascar. Discounts available for multiple purchases. Sale price¥3,980
Limited to 8 stones: 1 loose Brazilian ametrine (concave cut, average 10 carats) Multiple purchase discounts available

Limited to 8 stones: 1 loose Brazilian ametrine (concave cut, average 10 carats) Multiple purchase discounts available Sale price¥3,980
[On sale May 24th at 10 PM] "Limited to 12 Stones" Blue Gemstone Gacha 💎 Brazil Paraiba Tourmaline (CuO: 1.5%, MnO: 3.2%) and Zimbabwe Euclase, normally priced at ¥35,800, and more! (Multiple purchase discount available)

[On sale May 24th at 10 PM] "Limited to 12 Stones" Blue Gemstone Gacha 💎 Brazil Paraiba Tourmaline (CuO: 1.5%, MnO: 3.2%) and Zimbabwe Euclase, normally priced at ¥35,800, and more! (Multiple purchase discount available) Sale price¥3,980
[On Sale June 13, 10 PM] [Limited to 2 Stones] Brown Diamond (4mm/0.3ct, with certificate) [Multiple Purchase Discount Available]

[On Sale June 13, 10 PM] [Limited to 2 Stones] Brown Diamond (4mm/0.3ct, with certificate) [Multiple Purchase Discount Available] Sale price¥5,980
《Limited Edition - Pop-up Event Special》Gem Gacha 💎 Win gems such as red sapphire with a certificate, chameleon diamond, imperial topaz, alexandrite, and gems polished by Mr. Sanje. 《Multiple Purchase Discount Available》

《Limited Edition - Pop-up Event Special》Gem Gacha 💎 Win gems such as red sapphire with a certificate, chameleon diamond, imperial topaz, alexandrite, and gems polished by Mr. Sanje. 《Multiple Purchase Discount Available》 Sale price¥2,980
【Available 10 PM on 6/7】《Limited to 10 Stones》Zircon Gacha including a rare Malawi bicolor zircon, usually priced at 29,800 yen 《Multiple Purchase Discount Available》

【Available 10 PM on 6/7】《Limited to 10 Stones》Zircon Gacha including a rare Malawi bicolor zircon, usually priced at 29,800 yen 《Multiple Purchase Discount Available》 Sale price¥4,980
[On sale June 8th, 10 PM JST] 《Limited to 4 stones》Needle-in-Blue Topaz Gacha💎Average 45ct《Multiple purchase discount available》

[On sale June 8th, 10 PM JST] 《Limited to 4 stones》Needle-in-Blue Topaz Gacha💎Average 45ct《Multiple purchase discount available》 Sale price¥9,800
[On sale 6/6 at 10 PM] Limited to 6 Stones: Needle-Inclusion Blue Topaz Loose Stone (Avg. 16ct) - Multiple Purchase Discount Available

[On sale 6/6 at 10 PM] Limited to 6 Stones: Needle-Inclusion Blue Topaz Loose Stone (Avg. 16ct) - Multiple Purchase Discount Available Sale price¥4,980
[On Sale June 6th, 10 PM JST] 11-Piece Limited Edition Madagascar Sapphire Gacha (Including bi-color and silky varieties, 3.5-5.4mm) [Multi-buy discount available]

[On Sale June 6th, 10 PM JST] 11-Piece Limited Edition Madagascar Sapphire Gacha (Including bi-color and silky varieties, 3.5-5.4mm) [Multi-buy discount available] Sale price¥4,980
[On Sale June 7th, 10 PM] Limited to 15 Stones: Afghan Pink Diaspore Single Stone Loose Gemstone (Avg. 0.3ct) - Multiple Purchase Discount Available

[On Sale June 7th, 10 PM] Limited to 15 Stones: Afghan Pink Diaspore Single Stone Loose Gemstone (Avg. 0.3ct) - Multiple Purchase Discount Available Sale price¥3,980
[Sale starts 6/5 at 10 PM JST] 《Limited to 25 sets》Kochi Prefecture Red Coral Branch (Raw Wood) and 2 Loose Stones Set (March Birthstone, Coral) 《Multiple Purchase Discount Available》

[Sale starts 6/5 at 10 PM JST] 《Limited to 25 sets》Kochi Prefecture Red Coral Branch (Raw Wood) and 2 Loose Stones Set (March Birthstone, Coral) 《Multiple Purchase Discount Available》 Sale price¥6,980
[On Sale June 6th]《Limited to 9 Stones》Brazilian Amethyst Single Stone Loose (Includes Elestial and Bi-Color Amethyst)《Bulk Purchase Discount Available》

[On Sale June 6th]《Limited to 9 Stones》Brazilian Amethyst Single Stone Loose (Includes Elestial and Bi-Color Amethyst)《Bulk Purchase Discount Available》 Sale price¥3,980
Mini bottle keychain filled with natural stones (11 colors available, multiple purchase discount)

Mini bottle keychain filled with natural stones (11 colors available, multiple purchase discount) Sale price¥2,800
[On sale May 23rd, 10 PM] "Limited 7 Stones" Kochi Prefecture Blood Coral Loose Gemstones (Oval Cut, 4x6~7mm) "Multi-purchase discount available"

[On sale May 23rd, 10 PM] "Limited 7 Stones" Kochi Prefecture Blood Coral Loose Gemstones (Oval Cut, 4x6~7mm) "Multi-purchase discount available" Sale price¥3,980
[Sale starts May 24th, 10 PM JST] 9 Limited Edition Kochi Prefecture Red Coral Branches (Rough) (1 Piece) (March Birthstone, Coral, average 6.5ct) (Multiple purchase discount available)

[Sale starts May 24th, 10 PM JST] 9 Limited Edition Kochi Prefecture Red Coral Branches (Rough) (1 Piece) (March Birthstone, Coral, average 6.5ct) (Multiple purchase discount available) Sale price¥6,980
【5/22 22時販売】《限定9石》こだわりカットガチャ💎通常39,800円の甲州貴石切子 plusthree「昴：アメトリン」や山本武氏の作品など（おまけでサンジェ氏シトリン1石）《複数購入割引有》

【5/22 22時販売】《限定9石》こだわりカットガチャ💎通常39,800円の甲州貴石切子 plusthree「昴：アメトリン」や山本武氏の作品など（おまけでサンジェ氏シトリン1石）《複数購入割引有》 Sale price¥4,980
[On Sale May 29, 10 PM JST] 《Limited 13 Stones》Yellow Diamond Gacha, win a VVS-2/4.3mm/with Sorting Report worth 39,800 yen (regular price) 💎《Multiple Purchase Discount Available》

[On Sale May 29, 10 PM JST] 《Limited 13 Stones》Yellow Diamond Gacha, win a VVS-2/4.3mm/with Sorting Report worth 39,800 yen (regular price) 💎《Multiple Purchase Discount Available》 Sale price¥2,980
[On sale May 24th, 10 PM JST] 💎 Diamond Gacha with Appraisal Certificate! Get D/VS-1/3.4mm or I/VS-1/3.7mm diamonds, normally 29,800 yen! Limited to 15 stones. (Multiple purchase discount available)

[On sale May 24th, 10 PM JST] 💎 Diamond Gacha with Appraisal Certificate! Get D/VS-1/3.4mm or I/VS-1/3.7mm diamonds, normally 29,800 yen! Limited to 15 stones. (Multiple purchase discount available) Sale price¥3,980
[On sale May 22, 10 PM JST] "Limited to 11 Stones" Andalusite from Madagascar (cut by Mr. Sanje) Gacha - Average 0.40ct "Multiple Purchase Discount Available"

[On sale May 22, 10 PM JST] "Limited to 11 Stones" Andalusite from Madagascar (cut by Mr. Sanje) Gacha - Average 0.40ct "Multiple Purchase Discount Available" Sale price¥4,980
[On sale May 23rd at 10 PM] Limited 12 Stones: Russian Phenakite Single Stone Loose (average 0.35ct) - Multiple Purchase Discount Available

[On sale May 23rd at 10 PM] Limited 12 Stones: Russian Phenakite Single Stone Loose (average 0.35ct) - Multiple Purchase Discount Available Sale price¥9,800
【Sales Start 10 PM, May 17 JST】《Limited 26 Stones》Chrysoberyl Cat's Eye from Kerala, India (Neon Greenish Yellow/Mini Size) 《Bulk Purchase Discount Available》

【Sales Start 10 PM, May 17 JST】《Limited 26 Stones》Chrysoberyl Cat's Eye from Kerala, India (Neon Greenish Yellow/Mini Size) 《Bulk Purchase Discount Available》 Sale price¥1,580
[On sale May 29th at 10 PM] "Checker x Sui" Koshu Kiseki Cut Mexican Fire Opal (usually 79,800 yen) Gacha with only 10 stones available. Win a Fire Opal (and receive one Contraluz!). [Multiple purchase discount available]

[On sale May 29th at 10 PM] "Checker x Sui" Koshu Kiseki Cut Mexican Fire Opal (usually 79,800 yen) Gacha with only 10 stones available. Win a Fire Opal (and receive one Contraluz!). [Multiple purchase discount available] Sale price¥5,980
[On sale May 10th, 10 PM JST] 《Limited 4 Stones》Madagascar Pezzottaite Loose Stone (Round Cut, approx. 3mm) cut by Mr. Sanje 《Multi-purchase discount available》

[On sale May 10th, 10 PM JST] 《Limited 4 Stones》Madagascar Pezzottaite Loose Stone (Round Cut, approx. 3mm) cut by Mr. Sanje 《Multi-purchase discount available》 Sale price¥6,980
[On sale May 10th, 10 PM JST] 6 Limited Pieces - Brazilian Mica in Rose Quartz (One stone), Multiple Purchase Discount Available

[On sale May 10th, 10 PM JST] 6 Limited Pieces - Brazilian Mica in Rose Quartz (One stone), Multiple Purchase Discount Available Sale price¥3,980
[On sale May 10th at 10 PM] "Limited 11 Stones" Brazilian Mica in Rose Quartz (1 stone) "Multiple purchase discount available"

[On sale May 10th at 10 PM] "Limited 11 Stones" Brazilian Mica in Rose Quartz (1 stone) "Multiple purchase discount available" Sale price¥3,980
[On Sale 10 PM, June 7] *Limited to 3 Sets* 1.0ct/D/VS-VVS/IDEAL Lab-Grown Diamond (Synthetic Diamond) & 2 Rare Cabochon Stones (Total of 3 Stones Included) *Multiple Purchase Discount Available*

[On Sale 10 PM, June 7] *Limited to 3 Sets* 1.0ct/D/VS-VVS/IDEAL Lab-Grown Diamond (Synthetic Diamond) & 2 Rare Cabochon Stones (Total of 3 Stones Included) *Multiple Purchase Discount Available* Sale price¥49,800
See more products eligible for multiple purchase discounts

Bungo and Alchemist

coming soon 【22602641掲載】【カラフリ】K18WG ダイヤモンド ペンダントトップ（ネックレストップ）

[Available June 18th at 10 PM] [Colorful] K18WG Diamond 1.03ct Pendant Top Sale price¥128,000
coming soon 【22602640掲載】【カラフリ】K18/SILVER/Pd アメジスト ペンダントトップ（ネックレストップ）

[On Sale June 18, 10 PM] [Karafuri] K18/SILVER/Pd Amethyst, Imperial Topaz Pendant Top (Necklace Top) with Appraisal Report Sale price¥19,800
coming soon [22602639 Posted] [Calafuri] K18 Amber/Copal Pendant Top (Necklace Top)

[22602639 Posted] [Calafuri] K18 Amber/Copal Pendant Top (Necklace Top) Sale price¥8,800
coming soon [Sale starts June 18th at 10 PM] [Colorful] K18PG Benitoite 0.03ct Ring with Certificate

[Sale starts June 18th at 10 PM] [Colorful] K18PG Benitoite 0.03ct Ring with Certificate Sale price¥39,800
coming soon [Sale starts 6/18 at 10 PM] Colorful Pt900 Synthetic Alexandrite 1.08ct Diamond 0.06ct Pendant Top (Necklace Top) with Appraisal Certificate

[Sale starts 6/18 at 10 PM] Colorful Pt900 Synthetic Alexandrite 1.08ct Diamond 0.06ct Pendant Top (Necklace Top) with Appraisal Certificate Sale price¥59,800
coming soon 【22602636掲載】【カラフリ】K18 アコヤパール リング

[22602636 Published] [Carafuli] K18 Akoya Pearl Ring Sale price¥49,800
coming soon [22602635 listed] [Calafuri] K18 Rhodochrosite 0.77ctct Ring

[22602635 listed] [Calafuri] K18 Rhodochrosite 0.77ctct Ring Sale price¥39,800
coming soon [Listed 22602633] [Colorful] Pt900/K18 Diamond 0.22ct Ring

[Listed 22602633] [Colorful] Pt900/K18 Diamond 0.22ct Ring Sale price¥98,000
coming soon [22602631 Posted] [Coloreful] Pt900 Blue Sapphire 1.05ctct Ring

[22602631 Posted] [Coloreful] Pt900 Blue Sapphire 1.05ctct Ring Sale price¥98,000
K18WG クロムトルマリン 0.70ctct・サファイア0.30ctペンダントトップ（ネックレストップ） 鑑別書

[On sale 10 PM on 6/14] [Colorful] K18WG Chrome Tourmaline 0.70ct / Sapphire 0.30ct Pendant Top (Necklace Top) with appraisal Sale price¥79,800
Pt900 タイ産サファイア 1.33ct リング

[Available June 12, 10 PM JST] [Colorfuri] Pt900 Thai Sapphire 1.33ct and Diamond 0.12ct Ring with GIA Report Sale price¥198,000
Pt900 マダガスカル産サファイア 0.99ct リング

[On sale June 12th at 10 PM] [Colorfuri] Pt900 Madagascar Sapphire 0.99ct / Diamond 0.58ct Ring GIA Sale price¥228,000
Pt900 ダイヤモンド 1.00ctct ペンダント（ネックレス）

[COLORFUL] Pt900 Diamond 1.00ct Pendant (Necklace) Sale price¥49,800
K18WG ダイヤモンド 0.5ct ペンダント（ネックレス）

[On sale May 26th, 10 PM] Colorful K18WG Diamond 0.40ct Pendant (Necklace) Sale price¥79,800
Pt900 ブラジル産パライバトルマリン 0.06ct ペンダント（ネックレス）

[On sale 5/26 10 PM] [Colorful] Pt900 Paraiba Tourmaline from Brazil 0.06ct / Diamond 0.18ct Pendant Top (CuO:2.6%, MnO:3.5%) Sale price¥69,800
Pt900 アイスブルーダイヤモンド（トリートメント） 0.256ctct ペンダント（ネックレス）

[On Sale 5/26 at 10 PM] Colorful Pt900 Ice Blue Diamond (Treated) 0.256ct / Diamond 0.06ct Pendant (Necklace) Sale price¥98,000
K14WG ブルーサファイア 0.22ctct ペンダント（ネックレス）

[ColorFleuri] K14WG Blue Sapphire 0.22ct Pendant (Necklace) Sale price¥39,800
K18 合成ルビー ペンダントトップ（ネックレストップ）

[On sale May 30th at 10 PM] [Colorfri] K18 Synthetic Ruby / Synthetic Spinel Pendant Top (Necklace Top) with Certificate of Authenticity Sale price¥98,000
K18 クォーツァイト ペンダントトップ（ネックレストップ）

【Calafuri】K18 Quartzite Pendant Top (Necklace Top) Sale price¥49,800
Pt900 ダイヤモンド 0.65ctct ペンダントトップ（ネックレストップ）

[Colorful] Pt900 Diamond 0.65ct Pendant Top Sale price¥89,800
[On sale May 14 at 10 PM] Colorful WISH UPON A STAR® 3.5mm/0.166ct/F/VS1 Diamond with Certificate

[On sale May 14 at 10 PM] Colorful WISH UPON A STAR® 3.5mm/0.166ct/F/VS1 Diamond with Certificate Sale price¥39,800
Pt900 ダイヤモンド 0.50ct リング

[Sales begin May 18 at 10 PM JST] [Colorflee] Pt900 Diamond 0.50ct Ring Sale price¥79,800
K18WG ダイヤモンド 0.126ct ペンダント（ネックレス）

[On sale 5/23 at 10 PM] [Colorful] K18WG Diamond 0.126ct Pendant (Necklace) Sale price¥49,800
K18 ダイヤモンド 0.3ct ペンダント（ネックレス）

[On sale May 23 at 10 PM] [Colorfully] K18 Diamond 0.3ct Pendant Top (Necklace Top) Sale price¥39,800
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KARATZ collaboration
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jewelry

K18PGマダガスカル産ピンクサファイア0.24ct0.25ctピアス（アッシャーカット）
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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
Learn more about custom-made products

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 publishes "Gemstone Encyclopedia"

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.