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Additional charge for resizing: 4,500 yen Sale price¥4,500

Additional fee: +1,000 yen Sale price¥1,000

Repair cost + 2,500 yen Sale price¥2,500
Sold out [On sale 7/22 at 10 PM] Limited to 10 Stones: Sapphire Gacha featuring a Certified Padparadscha Sapphire! (Multiple Purchase Discount Available)

[On sale 7/22 at 10 PM] Limited to 10 Stones: Sapphire Gacha featuring a Certified Padparadscha Sapphire! (Multiple Purchase Discount Available)
Sold out 【7/17 22時販売】《限定13石》通常25,800円のブラジル・バターリャ産パライバトルマリン（CuO：1.7％.MnO：1.9％）やユークレースなどブルーの宝石が当たるガチャ（おまけでハートシェイプ1石）《複数購入割引有》

【7/17 22時販売】《限定13石》通常25,800円のブラジル・バターリャ産パライバトルマリン（CuO：1.7％.MnO：1.9％）やユークレースなどブルーの宝石が当たるガチャ（おまけでハートシェイプ1石）《複数購入割引有》
coming soon 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
coming soon 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
Sold out [Sale starts July 11th, 10 PM JST] Limited to 16 Stones! Pink Diamond Gacha with 2 FANCY Color Pink Diamonds (with sorting certificate), normally ¥39,800. Multiple Purchase Discount Available.

[Sale starts July 11th, 10 PM JST] Limited to 16 Stones! Pink Diamond Gacha with 2 FANCY Color Pink Diamonds (with sorting certificate), normally ¥39,800. Multiple Purchase Discount Available.
Sold out 《Limited to 7 stones》American Ant Hill Garnet (round cut, approx. 3mm) 《Multiple purchase discount available》

《Limited to 7 stones》American Ant Hill Garnet (round cut, approx. 3mm) 《Multiple purchase discount available》
Sold out 《Hong Kong Sourcing》Pakistan Blue Tint Axinite Gacha 1 Stone Loose《Multiple Purchase Discount Available》

《Hong Kong Sourcing》Pakistan Blue Tint Axinite Gacha 1 Stone Loose《Multiple Purchase Discount Available》

Sold out [On Sale June 6th at 10 PM JST] "Limited 13 Stones" Fluorite Gacha including flawed Koshu cut gemstones "Bulk Purchase Discount Available"

[On Sale June 6th at 10 PM JST] "Limited 13 Stones" Fluorite Gacha including flawed Koshu cut gemstones "Bulk Purchase Discount Available"

Sold out [6/ 10 PM JST release] 《Limited 10 Stones》 Iolite Gacha featuring Koshu-Kiseki-Kiriko plusthree 《Bulk purchase discount available》

[6/ 10 PM JST release] 《Limited 10 Stones》 Iolite Gacha featuring Koshu-Kiseki-Kiriko plusthree 《Bulk purchase discount available》
Sold out 【Sale starts 10PM on June 27th】《Limited 8 Stones》Myanmar Black Spinel (B Grade)《Multiple Purchase Discount Available》

【Sale starts 10PM on June 27th】《Limited 8 Stones》Myanmar Black Spinel (B Grade)《Multiple Purchase Discount Available》
Sold out [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"
Sold out オレゴンサンストーン 0.713ctルース

Oregon Sunstone 0.713ct loose
Sold out メキシコ産オパール 0.677ctルース

Mexican Opal 0.677ct Loose

Sold out 【Sale starts June 19th, 10 PM】《Limited to 10 stones》Madagascar Andesine-Labradorite (Rainbow Moonstone) Gacha, 1 Loose Stone (Avg. 0.40ct)《Multiple Purchase Discount Available》

【Sale starts June 19th, 10 PM】《Limited to 10 stones》Madagascar Andesine-Labradorite (Rainbow Moonstone) Gacha, 1 Loose Stone (Avg. 0.40ct)《Multiple Purchase Discount Available》
Sold out [On sale June 19th at 10 PM] Limited 1 Set: Two Tanzania Illusion Sunstones Cut by NOBU (Multiple purchase discount available)

[On sale June 19th at 10 PM] Limited 1 Set: Two Tanzania Illusion Sunstones Cut by NOBU (Multiple purchase discount available)
Sold out [On sale June 20, 10 PM JST] Sapphire Gacha💎 where you can win a Padparadscha Sapphire with DGL certificate, normally priced at ¥29,800 (comes with one white sapphire as a bonus) 《Multi-purchase discount available》

[On sale June 20, 10 PM JST] Sapphire Gacha💎 where you can win a Padparadscha Sapphire with DGL certificate, normally priced at ¥29,800 (comes with one white sapphire as a bonus) 《Multi-purchase discount available》
Sold out Sapphire Gacha where you can win a Cornflower Blue Sapphire with AIGS certificate 💎 Comes with a trillion sapphire as a bonus gift《Multiple purchase discount available》

Sapphire Gacha where you can win a Cornflower Blue Sapphire with AIGS certificate 💎 Comes with a trillion sapphire as a bonus gift《Multiple purchase discount available》
Sold out Authentic Gem Encyclopedia 3D Stickers Vol. 1: The Big Five Gems

Authentic Gem Encyclopedia 3D Stickers Vol. 1: The Big Five Gems

Sold out [Sale on 6/13 at 10 PM] Limited to 11 stones! Ametrine Sakura-cut Koshu-Kiseki-Kiriko plusthree Gacha (including flower cuts, usually priced at 29,800 yen), with a bonus mini ametrine stone. Multiple purchase discount available.

[Sale on 6/13 at 10 PM] Limited to 11 stones! Ametrine Sakura-cut Koshu-Kiseki-Kiriko plusthree Gacha (including flower cuts, usually priced at 29,800 yen), with a bonus mini ametrine stone. Multiple purchase discount available.
Sold out [On sale June 8th, 10 PM JST] "Limited to 12 Stones" Garnet Gacha with 8mm Dandelion Cut Rhodolite Garnet (Normally 39,800 yen) "Multiple Purchase Discount Available"

[On sale June 8th, 10 PM JST] "Limited to 12 Stones" Garnet Gacha with 8mm Dandelion Cut Rhodolite Garnet (Normally 39,800 yen) "Multiple Purchase Discount Available"
Sold out [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
Sold out [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]
Sold out 【5/23 22時販売】《限定11石》カービングガチャ💎通常29,800円のイチゴカット43ctのブルートパーズ・フラワーカットのアメジスト・プルメリアカットなど（おまけで特殊カットブルートパーズ8-10mm）《複数購入割引有》　

【5/23 22時販売】《限定11石》カービングガチャ💎通常29,800円のイチゴカット43ctのブルートパーズ・フラワーカットのアメジスト・プルメリアカットなど（おまけで特殊カットブルートパーズ8-10mm）《複数購入割引有》　
Sold out 《Limited to 9 Stones》Specialty Cut Gacha💎Koshu Kiseki Kiriko plusthree "Subaru: Ametrine" (normally 39,800 yen) and works by Takeshi Yamamoto, etc. (plus one citrine by Mr. Sanje as a bonus)《Multiple Purchase Discount Available》

《Limited to 9 Stones》Specialty Cut Gacha💎Koshu Kiseki Kiriko plusthree "Subaru: Ametrine" (normally 39,800 yen) and works by Takeshi Yamamoto, etc. (plus one citrine by Mr. Sanje as a bonus)《Multiple Purchase Discount Available》
Sold out [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》
Sold out [Sales begin June 12 at 10 PM JST] Blue Gem Gacha 💎 Featuring Brazilian Paraiba Tourmaline (CuO: 1.5%, MnO: 3.2%) normally priced at 35,800 JPY, Zimbabwean Euclase, and more! 《Bulk purchase discounts available》

[Sales begin June 12 at 10 PM JST] Blue Gem Gacha 💎 Featuring Brazilian Paraiba Tourmaline (CuO: 1.5%, MnO: 3.2%) normally priced at 35,800 JPY, Zimbabwean Euclase, and more! 《Bulk purchase discounts available》
Sold out [Sales start May 15, 10 PM] Limited to 11 Stones: Aquamarine Gacha with Certified Santa Maria Aquamarine (Multiple Purchase Discount Available)

[Sales start May 15, 10 PM] Limited to 11 Stones: Aquamarine Gacha with Certified Santa Maria Aquamarine (Multiple Purchase Discount Available)
Sold out [On sale May 16th at 10 PM JST] 《Limited 20 stones》Big Gem Gacha 💎 Win a 19ct up Shimizu Kisaki Co. Camellia cut gem 《Multiple purchase discount available》

[On sale May 16th at 10 PM JST] 《Limited 20 stones》Big Gem Gacha 💎 Win a 19ct up Shimizu Kisaki Co. Camellia cut gem 《Multiple purchase discount available》
Sold out [On sale May 16th at 10 PM JST] Limited to 10 stones! Cat Cut Gacha 💎 Tourmaline, Opal, Chalcedony, etc. (Includes a bonus mini-mini cat cut stone) (Multiple purchase discount available)

[On sale May 16th at 10 PM JST] Limited to 10 stones! Cat Cut Gacha 💎 Tourmaline, Opal, Chalcedony, etc. (Includes a bonus mini-mini cat cut stone) (Multiple purchase discount available)
Sold out [On sale May 3rd at 10 PM] Limited to 9 stones! Color-shifting amethyst gacha, including a 3.49ct konpeito cut by Makoto Nakano (normally 22,800 yen) and a Sanje-cut stone. (Multiple purchase discount available)

[On sale May 3rd at 10 PM] Limited to 9 stones! Color-shifting amethyst gacha, including a 3.49ct konpeito cut by Makoto Nakano (normally 22,800 yen) and a Sanje-cut stone. (Multiple purchase discount available)
Sold out [On sale May 3rd, 10 PM JST] Garnet Gacha (Round Cut, 2.5mm) Cut by American lapidary artist KEN 《Bulk purchase discount available》

[On sale May 3rd, 10 PM JST] Garnet Gacha (Round Cut, 2.5mm) Cut by American lapidary artist KEN 《Bulk purchase discount available》
Sold out 【12562769掲載】ブラジル産マイカインローズクォーツ（雲母インローズクォーツ） 3.123ctルース

Brazilian Mica in Rose Quartz (Muscovite in Rose Quartz) 3.123ct Loose

Sold out 《Limited to 10 Gems》DGL certified, pink sapphire gacha including a 0.155ct Padparadscha sapphire, plus a bonus sapphire such as a trillion cut! 《Multi-purchase discount available》

《Limited to 10 Gems》DGL certified, pink sapphire gacha including a 0.155ct Padparadscha sapphire, plus a bonus sapphire such as a trillion cut! 《Multi-purchase discount available》
Sold out 《Limited to 12 Stones》Rare Stone Gacha 💎 Cinnabar from China, Paraiba Tourmaline from Mozambique, Grandidierite, etc.《Multiple Purchase Discount Available》

《Limited to 12 Stones》Rare Stone Gacha 💎 Cinnabar from China, Paraiba Tourmaline from Mozambique, Grandidierite, etc.《Multiple Purchase Discount Available》
Sold out Maushitsit (Mawsissi) from Myanmar 1 stone loose (12mm)《Multiple purchase discount available》

Maushitsit (Mawsissi) from Myanmar 1 stone loose (12mm)《Multiple purchase discount available》
Sold out 《Limited to 10 Gems》Koshu Kiseki Kiriko plusthree "Akatsuki" Ametrine Gem Gacha《Bulk Purchase Discount Available》

《Limited to 10 Gems》Koshu Kiseki Kiriko plusthree "Akatsuki" Ametrine Gem Gacha《Bulk Purchase Discount Available》
Sold out 《Limited to 2 Stones》Indian Cavansite Crystal 1 Stone (average 7.2ct) 《Bulk Purchase Discount Available》

《Limited to 2 Stones》Indian Cavansite Crystal 1 Stone (average 7.2ct) 《Bulk Purchase Discount Available》
Sold out "Limited to 9" Deep sea coral loose stone (March birthstone, coral, 7mm) "Multiple purchase discount available"

"Limited to 9" Deep sea coral loose stone (March birthstone, coral, 7mm) "Multiple purchase discount available"
Sold out ブラジル産インディゴライトトルマリン 0.105ctルース

[On sale May 5th at 10 PM JST] Brazilian Indicolite Tourmaline 0.105ct Loose Stone with Appraisal Report
Sold out Jeremejevite Gacha with a 0.22ct Loose Stone Worth 55,800 JPY [Limited to 10 Stones] [Multiple Purchase Discount Available]

Jeremejevite Gacha with a 0.22ct Loose Stone Worth 55,800 JPY [Limited to 10 Stones] [Multiple Purchase Discount Available]
Sold out [Sales start: Wednesday, April 29, 10 PM] TV Anime "Dr. STONE" x Jewelry Store KARATZ Collaboration Mini Character Acrylic Stand

[Sales start: Wednesday, April 29, 10 PM] TV Anime "Dr. STONE" x Jewelry Store KARATZ Collaboration Mini Character Acrylic Stand

Sold out 《Limited to 21 Stones》Russian Demantoid Garnet Gacha with Beautiful Horsetail Inclusions, usually ¥69,800《Multiple Purchase Discount Available》

《Limited to 21 Stones》Russian Demantoid Garnet Gacha with Beautiful Horsetail Inclusions, usually ¥69,800《Multiple Purchase Discount Available》

Sold out 《Limited to 12 Stones》Iolite Gacha including Konpeito-cut Golden Iolite, normally 27,800 yen (with a bonus cut by Mr. Sanje)《Multiple Purchase Discount Available》

《Limited to 12 Stones》Iolite Gacha including Konpeito-cut Golden Iolite, normally 27,800 yen (with a bonus cut by Mr. Sanje)《Multiple Purchase Discount Available》
Sold out 【12562646掲載】ペルー産バイカラーブルーオパール 2.707ctルース

Peruvian Bi-Color Blue Opal 2.707ct Loose Stone

Sold out [Sales end on Tuesday, June 30] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration Mini Character Can Badge

[Sales end on Tuesday, June 30] TV Anime "Dr. STONE" x KARATZ Jewelry Store Collaboration Mini Character Can Badge

KARATZ Custom Made

Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.

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.