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coming soon [Item 12564511] Russian Alexandrite 0.103ct Loose Stone
coming soon [Deadline: Mon, 9/14, 10:00 AM: Lottery Sale_07] Madagascar Royal Blue Sapphire 4.0mm/0.377ct Loose Stone with Identification Report
coming soon 【12564367掲載】スリランカ産非加熱パープルサファイア 0.870ctルース
coming soon [Deadline: Sat, Sep 5, 10:00 AM: Lottery Sale_09] Sri Lankan Unheated Color-Change Sapphire 1.170ct Loose Stone, GIA certified
coming soon 【12564175掲載】スリランカ産スピネル 3.419ctルース
coming soon Brazilian green tourmaline loose stone 0.146ct
coming soon [Item 12561581] Tanzanian Almandine Garnet 1.210ct Loose Stone
coming soon 【12564324 listed】Burmese Red Spinel 0.210ct Loose Stone
coming soon [Item 12561430] Unheated Pigeon Blood Ruby 0.510ct Loose Stone
coming soon [Item 12564454] Brazilian Elestial Amethyst 3.684ct Loose Stone
coming soon [Item 12564452] Ametrine 4.815ct Loose Stone
coming soon [Item 12564422] Jeremejevite from Namibia, 0.061ct loose stone
coming soon 【12564460掲載】ネパール産カイヤナイト 1.216ctルース
coming soon Malawi Moonstone (Malawi Moonstone) 1.388ct Loose Stone
coming soon [Listing 22602762] [Colorify] Pt900 Alexandrite 0.15ct, Diamond 0.08ct Pendant Top (Necklace Top) with Appraisal Report
coming soon [Item No. 22602766] [Colorful] Pt900 1ct Diamond Ring with Appraisal Report
coming soon [Item 22602768] [Color-Full] K18 0.35ct Diamond Ring with Appraisal Report
coming soon Royal Blue Sapphire 0.530ct Loose Stone
coming soon 【12564447掲載】ティールブルーサファイア 0.555ctルース
Sold out [Item 22602816] [Colorify] 18K White Gold Brazilian Alexandrite 0.3ct and Diamond 0.15ct Pendant Top (Necklace Top) with Identification Report
Sold out 【12556687掲載】カシャライアメジスト 0.531ct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.