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ロシア産イエローダイヤモンド原石（ソーヤブル） 0.306ct原石

Russian Yellow Diamond Rough (Sawable) 0.306ct Rough (Trigon) Sale price¥98,000
ロシア産ダイヤモンド原石（ソーヤブル） 0.094ct原石

Russian diamond rough (sawable) 0.094ct rough Sale price¥24,800
ロシア産ダイヤモンド原石（ソーヤブル） 0.098ctルース

Russian rough diamond (sawable) 0.098ct loose Sale price¥24,800
ダイヤモンド原石（ソーヤブル） 0.125ctルース

Russian rough diamond (sawable) 0.125ct loose Sale price¥29,800
ロシア産ダイヤモンド原石（ソーヤブル） 0.088ctルース

Russian rough diamond (sawable) 0.088ct loose Sale price¥22,800
ロシア産ダイヤモンド原石（ソーヤブル） 0.103ctルース

Russian Diamond Rough (Sawable) 0.103ct Loose (Trigon) Sale price¥25,800
ロシア産ダイヤモンド原石（ソーヤブル） 0.101ctルース

Russian rough diamond (sawable) 0.101ct loose Sale price¥25,800
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
Sold out 【12562690掲載】ロシア産スターダイオプサイド 7.056ctルース

Russian Star Diopside 7.056 ct Loose Stone

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 ロシア産デマントイドガーネット（ホーステール認む） 0.265ctルース

Russian Demantoid Garnet (Horsetail) 3.8mm/0.265ct Loose Stone
Sold out 《Limited to 20 stones》Demantoid Garnet Gacha, including Russian demantoid garnets, normally priced at 69,800 yen 《Multiple purchase discount available》

《Limited to 20 stones》Demantoid Garnet Gacha, including Russian demantoid garnets, normally priced at 69,800 yen 《Multiple purchase discount available》
Sold out K18YG Russian Demantoid Garnet (horsetail inclusion) 4mm/0.382ct, Bekily Blue Garnet Ring

K18YG Russian Demantoid Garnet (horsetail inclusion) 4mm/0.382ct, Bekily Blue Garnet Ring
Sold out Color Change Gacha💎 Russian alexandrite, Brazilian alexandrite, and Tanzanian color-change garnets, usually priced at ¥39,800. 《Discounts for multiple purchases available》

Color Change Gacha💎 Russian alexandrite, Brazilian alexandrite, and Tanzanian color-change garnets, usually priced at ¥39,800. 《Discounts for multiple purchases available》
Sold out Emerald Gacha (including Emerald Cat's Eye and special cuts) featuring Russian non-oil emeralds, etc. 💎 (Multiple purchase discount available)

Emerald Gacha (including Emerald Cat's Eye and special cuts) featuring Russian non-oil emeralds, etc. 💎 (Multiple purchase discount available)
Sold out Russian alexandrite normally 69,800 JPY, rare twin chrysoberyl cat's eye normally 65,800 JPY, Alex Gacha (multiple purchase discount available)

Russian alexandrite normally 69,800 JPY, rare twin chrysoberyl cat's eye normally 65,800 JPY, Alex Gacha (multiple purchase discount available)
Sold out Russian Alexandrite 2.4mm/0.061ct Loose Stone

Russian Alexandrite 2.4mm/0.061ct Loose Stone
Sold out Russian Phenakite 0.615ct Loose Stone

Russian Phenakite 0.615ct Loose Stone
Sold out 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） 0.171ctルース

Russian demantoid garnet cat's eye (horsetail recognized) 0.171ct loose

Sold out 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） 0.222ctルース

Russian demantoid garnet cat's eye (horsetail recognized) 0.222ct loose

Sold out ロシア産デマントイドガーネット（ホーステール認む） 1.058ctルース

Russian demantoid garnet (horsetail recognized) 6.3mm/1.058ct loose
Sold out [12/5 22:00] Russian Phenakite 6.6mm/1.058ct Loose Stone

[12/5 22:00] Russian Phenakite 6.6mm/1.058ct Loose Stone
Sold out ロシア産デマントイドガーネット（ホーステール認む） 5.2mm/0.702ctルース

Russian demantoid garnet (horsetail recognized) 5.2mm/0.702ct loose
Sold out 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） 2.5mm/0.141ctルース

Russian demantoid garnet cat's eye (horsetail recognized) 2.5mm/0.141ct loose
Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.070ctルース

Russian Demantoid Garnet (Horsetail) 0.070ct Loose
Sold out ロシア産フェナカイト 0.899ctルース

Russian Phenakite 0.899ct Loose Stone

Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.162ctルース

Russian Demantoid Garnet (Horsetail) 3.3mm/0.162ct Loose Stone
Sold out Single loose Russian oil-free emerald (2.1mm, square cut) {Multiple purchase discounts available}

Single loose Russian oil-free emerald (2.1mm, square cut) {Multiple purchase discounts available}
Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.135ctルース

Russian Demantoid Garnet (Horsetail) 3.0mm/0.135ct Loose Stone
Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.110ctルース

Russian demantoid garnet (horsetail recognized) 0.110ct loose
Sold out ロシア産アレキサンドライト 0.074ctルース

Russian Alexandrite 0.074ct loose stone
Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.064ctルース

Russian Demantoid Garnet (Horsetail) 0.064ct Loose Stone
Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.061ctルース

Russian Demantoid Garnet (Horsetail) 0.061ct Loose Stone
Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.036ctルース

Russian Demantoid Garnet (Horsetail) 0.036ct Loose Stone
Sold out One loose, oil-free emerald from Russia (2.8mm, round cut) (Multiple purchase discounts available)

One loose, oil-free emerald from Russia (2.8mm, round cut) (Multiple purchase discounts available)
Sold out Limited to 6 stones: One loose, oil-free emerald from Russia (3.2mm, round cut) [Multiple purchase discounts available]

Limited to 6 stones: One loose, oil-free emerald from Russia (3.2mm, round cut) [Multiple purchase discounts available]
Sold out Limited to 7 stones: One loose, oil-free Russian emerald (1.5-1.6mm, step cut) [Multiple purchase discounts available]

Limited to 7 stones: One loose, oil-free Russian emerald (1.5-1.6mm, step cut) [Multiple purchase discounts available]

Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.075ctルース

Russian Demantoid Garnet (Horsetail) 2.5mm/0.075ct Loose Stone
Sold out ロシア産デマントイドガーネット（ホーステール認む） 2.5mm/0.073ctルース

Russian Demantoid Garnet (Horsetail) 2.5mm/0.073ct Loose Stone
Sold out ロシア産アレキサンドライト 0.088ctルース

Russian Alexandrite 0.088ct loose stone
Sold out ロシア産アレキサンドライト 0.058ctルース

Russian Alexandrite 0.058ct loose stone
Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.128ctルース

Russian Demantoid Garnet (Horsetail) 3.1mm/0.128ct Loose Stone
Sold out ロシア産デマントイドガーネット（ホーステール認む） 0.067ctルース

Russian Demantoid Garnet (Horsetail) 0.067ct Loose Stone

Sold out ロシア産アレキサンドライト 0.333ctルース

0.333ct loose alexandrite from Russia

Sold out Limited Quantity: Russian Phenakite (Round Cut, 3mm) Loose Stone (Multiple Purchase Discounts Available)

Limited Quantity: Russian Phenakite (Round Cut, 3mm) Loose Stone (Multiple Purchase Discounts Available)
Sold out Limited to 20 stones: Russian Demantoid Garnet (Round Cut, 2.0mm) Loose Stone (Multiple Purchase Discounts Available)

Limited to 20 stones: Russian Demantoid Garnet (Round Cut, 2.0mm) Loose Stone (Multiple Purchase Discounts Available)
Sold out クロムダイオプサイド 1.365ctルース

Russian Chrome Diopside 1.365ct Loose Stone
Sold out Russian Alexandrite 2.2mm/0.058ct Loose Stone

Russian Alexandrite 2.2mm/0.058ct Loose Stone

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.