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Today's new arrivals

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coming soon [12543545 published] Non-oil emerald 0.510ct loose
coming soon 【抽選販売112904】カシミール産非加熱サファイア 0.210ctルース GIA
coming soon 【抽選販売112903】カシミール産非加熱サファイア 0.260ctルース GIA
coming soon Pt900カシミール産非加熱サファイア1.14ct・ダイヤモンド リング
coming soon K18YGカンボジア産ブルージルコン0.51ct・ダイヤモンドリング
coming soon 【12545297掲載】スリランカ産マルチスターガーネット 4.209ctルース
coming soon 【抽選販売112912】<訳あり1点>🎅宝石アドベントカレンダー presented by KARATZ クリスマスまでの毎日宝石の輝きをお楽しみください
coming soon スリランカ産スターサファイア 2.057ctルース
coming soon 【12/5 22時販売】K18YGミャンマー産ピンクスピネル 3.9mm/0.276ct ・ホットピンクスピネルリング
coming soon 【12558719掲載】ドゥニライト 0.162ctルース
coming soon [12560329] Rhodolite Garnet 1.890ct Loose Stone
coming soon [12560331] Rhodolite Garnet 0.967ct Loose Stone
coming soon [12560344] Almandine Garnet 3.073ct Loose Stone
coming soon 【さくらインカット】マダガスカル産アパタイト 7.9mm/1.537ct《コラボ》ルース ワッペン
coming soon [E33 Shinjuku] [11/19 22:00] Russian Phenakite 5.8mm/0.752ct Loose Stone
coming soon [E33 Shinjuku] [11/19 22:00] Russian Phenakite 6.6mm/1.058ct Loose Stone
coming soon 非加熱ブラジル産パライバトルマリン 0.30ctルース GIA
coming soon 【12558711掲載】ドゥニライト 0.132ctルース

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.