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coming soon 【10/5 22時販売】《限定9石》全石鑑別書付・ゾイサイト1石ルース(イエロー、ピンクブラウン、グリーンなど)《複数購入割引有》
coming soon 【10/4 22時販売】タンザニア産バイカラーサファイア1石ルース《複数購入割引有》
coming soon 【10/3 22時販売】《限定9石》タンザニア産タンザナイト1石ルース(5×7mm,オーバルカット)《複数購入割引有》
coming soon 【10/3 22時販売】《限定15石》ブラジル産シルキーアレキサンドライト1石ルース(2.5-3.0mm,ラウンドカット)《複数購入割引有》
coming soon 【12543723掲載】ヘミモルファイト 64.144ctルース
coming soon 【12558015掲載】アメリカ産アントヒルガーネット 0.822ctルース
coming soon [12558344] German Auchenite 0.090ct Loose Stone
coming soon 【12558127掲載】ブラジル産フローライトインクォーツ 3.963ctルース
coming soon 【12559437掲載】タンザニア産バイカラーグロッシュラーガーネット 1.359ctルース
coming soon 【12559367掲載】ジンバブエ産スフェーン 0.850ctルース
coming soon 【12559368掲載】ジンバブエ産スフェーン 0.756ctルース
coming soon 【12559370掲載】ジンバブエ産スフェーン 1.057ctルース
coming soon 【12559528掲載】アンデシン・ラブラドライト(通称名 ブルームーンストーン) 0.540ctルース
coming soon 【12559786掲載】ブルーサファイア 0.332ctルース
coming soon [12558351] Brazilian Swiss Blue Topaz 1.065ct Loose
coming soon ブラジル産アクアマリン 8.858ctルース
coming soon 【12558125掲載】ブラジル産フローライトインクォーツ 3.507ctルース
coming soon 【12560357掲載】ジンバブエ産バイカラーユークレース 0.352ctルース
coming soon [12560366] Dragon Garnet 0.754ct Loose Stone

Blue zircon 3.283ct loose Sale price¥75,800

Benitoite 0.095ct loose Sale price¥18,800

Andesine 3.430ct loose stone Sale price¥18,800

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.