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Sold out ブラジル産パーティカラーパライバトルマリン 0.156ctルース
Sold out ロシア産デマントイドガーネット(ホーステール認む) 0.378ctルース
Sold out 【KEN氏】メキシコ産ファイアオパール 1.150ctルース
Sold out オーストラリア産ブラックオパール 2.122ctルース
Sold out インディゴライトトルマリン 0.260ctルース
Sold out ブラジル産パライバトルマリン 0.194ctルース
Sold out 宝石商の道具「チェルシーカラーフィルター&二色鏡」宝石3石&説明書付き」
Sold out プリンセスカットダイヤモンド 2.0mm ルース(VSクラス相当)
Sold out 1 loose sapphire from Ratnapura, Sri Lanka (3.0mm-4.0mm, trilliant cut)《Multiple purchase discount available》
Sold out Russian demantoid garnet (2mm, round cut) 1 stone (discount available for multiple purchases)
Sold out Let's try the gem mining experience "Do-it-yourself gem excavation experience set" + bonus of fossil stickers and simple black light (more than 8 types of gems) (discounts available for multiple purchases)
Sold out グリーンランド産アイスルビー 1石(ハートシェイプ,4mm,ピンクサファイア)《複数購入割引有》
Sold out Blue moonstone (pyramid cut, 5 x 5 mm, 4 x 4 mm) 2 stone set《Discount available for multiple purchases》
Sold out Fire Opal (Common Opal) 2 stone set《Discount available for multiple purchases》
Sold out 《Limited to 16 stones》1 tanzanite stone (octagonal cut, 3.0mm)《Multiple purchase discount available》
Sold out Let's try gemstone polishing "Do-it-yourself rough stone polishing set" (for beginners: Inca Rose/Fluorite 2 stone set)
Sold out Let's try jewelry polishing "Do-it-yourself rough stone polishing set" (for beginners: fluorite 2 stone set)

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.