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Sold out パキスタン産アラゴナイト 2.544ctルース
Sold out 中国産バイカラーフローライト 6.274ctルース
Sold out アルゼンチン産バイカラーフローライト 11.226ctルース
Sold out [12554726] Cambodian bicolor zircon 5.480ct loose stone
Sold out 【12547828掲載】ブラジル産トラピッチェアメジスト 14.949ctルース
Sold out アフガニスタン産クンツァイト 3.508ctルース
Sold out タンザニア産タンザナイト 0.492ctルース
Sold out ゴーシェナイト 0.306ctルース
Sold out ナイジェリア産アベンチュリンアクアマリン 1.164ctルース
Sold out ナミビア産ジェレメジェバイト 0.620ct原石
Sold out タンザニア産タンザナイト 1.250ctルース
Sold out 合成ルチル 0.915ctルース
Sold out ブラジル産レピドクロサイトインクォーツ 1.352ctルース
Sold out ロンドンブルーダイヤモンド(トリートメント)

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.