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Vertical: 9.1 - 10.0mm

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Synthetic Opal 1.804ct Loose Sale price¥14,800

Sold out ブラジル産レインボーアクアマリン 2.698ctルース
Sold out ブラジル産ルベライト 2.588ctルース
Sold out ドミニカ共和国産コンクパール(火焔模様有り) 0.210ctルース
Sold out ブラジル産レインボーアクアマリン 1.309ctルース
Sold out インド産ムーンストーン 1.863ctルース
Sold out ブラジル産レインボーアクアマリン 1.298ctルース
Sold out Unheated blue sapphire from Madagascar 1.310ct loose GIA
Sold out 合成オパール 1.157ctルース
Sold out ホンジュラスオパール 1.264ctルース
Sold out ロードライトガーネット 1.273ctルース
Sold out ブラジル産スイスブルートパーズ 1.193ctルース
Sold out マダガスカル産アンダリュサイト 0.832ct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.