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Sold out ペルー産バイカラーブルーオパール 0.492ctルース
Sold out K18YG カメレオンダイヤモンド 0.142ct リング
Sold out Pt950 バイカラーサファイア 0.398ct リング
Sold out K18YG 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) 0.395ct リング
coming soon 【12560383掲載】シベリアンブルークォーツ(合成クォーツ) 0.900ctルース
coming soon 【12558076掲載】ベニトアイト 0.175ctルース
coming soon 【10/13 22時販売】アメリカ産ベニトアイト 0.185ctルース
coming soon 【10/13 22時販売】K18YGマダガスカル産スフェーン 0.597ct ペンダントトップ(ネックレストップ)
coming soon 【10/13 22時販売】【さくらインカット】スリランカ・ラトゥナプラ産サファイア 6.0mm/0.839ctルース
coming soon 【10/13 22時販売】パキスタン産ヴェイリネナイト 0.147ctルース 鑑別書
coming soon 【10/13 22時販売】ブラジル産アレキサンドライト 0.097ctルース(エメラルドカット)
coming soon K18PGカナリーイエローダイヤモンド(トリートメント)0.214ct・アレキサンドライトリング 中宝付
coming soon 【10/13 22時販売】ファンシーインテンスパープルピンクダイヤモンド 0.021ctルース(FANCY INTENSE PURPLE PINK, SI2)

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.