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Sold out German Hauyne 2.2mm/0.035ct Loose Stone
Sold out 【12559339掲載】ブラジル産インペリアルトパーズ 4.321ctルース
Sold out Brazilian Santa Maria Aquamarine 0.669ct Loose Stone
Sold out Australian boulder opal 6.152ct loose
Sold out [Sakura Incut] Sphene from Madagascar 6.0mm/0.865ct Loose Stone
Sold out ブラジル産パライバトルマリン 0.065ctルース (CuO:2.0%、MnO:2.6%)
Sold out Sri Lankan Moonstone 1.487ct Loose
Sold out メキシコ産ファイアオパール 0.564ctルース
Sold out Pakistani oil-in quartz 0.595ct loose
Sold out 【さくらインカット】ラベンダークォーツ(スコロライト) 2.161ctルース
Sold out タンザニア産アンデシン・ラブラドライト(通称名 レインボームーンストーン) 0.928ctルース
Sold out Pink tourmaline 0.341ct loose
Sold out Brazilian Yellow Beryl 1.473 ct Loose Stone
Sold out Mexican Fire Opal 0.362ct Loose
Sold out Paraiba tourmaline from Brazil 0.097ct loose
Sold out Paraiba tourmaline from Brazil 0.129ct loose (Cu:0.6%,MnO:0.9%)
Sold out スモーキークォーツ 0.691ctルース
coming soon ガーデンクォーツ 23.495ctルース
Sold out [Sakura In-Cut] Sapphire from Ratnapura, Sri Lanka, 6.0mm/0.839ct Loose
Sold out US Oregon Sunstone, 1.640 ct, Loose
Sold out US Oregon Sunstone, 1.640 ct, Loose
Sold out USA Oregon Sunstone 2.160ct Loose
Sold out ジンバブエ産バイカラーユークレース 0.197ctルース
Sold out Blue tourmaline 0.369ct loose Japanese-German book
Sold out Lazurite in quartz 0.959ct loose
Sold out Lazurite in quartz 0.877ct loose
Sold out Lazurite in quartz 0.353ct loose
Sold out ブラジル産インペリアルトパーズ 0.359ctルース
Sold out ブラジル産インペリアルトパーズ 2.093ctルース
Sold out Mexican Water Opal 4.8mm/0.289ct Loose
Sold out モザンビーク産パライバトルマリン 0.227ctルース
Sold out 【クローバーインカット】コロンビア産エメラルド 8mm/1.663ctルース《コラボ》 ワッペン付
Sold out American benitoite 0.076ct loose
Sold out キャシテライト 0.571ctルース
Sold out Star Ruby from Sri Lanka, 5.0mm/1.062ct Loose Stone, with Identification Report
Sold out Madagascar Andesine Labradorite (commonly known as Rainbow Moonstone) 4.867ct Loose Stone
Sold out Madagascar Andesine Labradorite (commonly known as Rainbow Moonstone) 4.894ct Loose Stone
Sold out ジンバブエ産スフェーン 0.477ctルース
Sold out メキシコ産ファイアオパール 0.728ctルース
Sold out Madagascar Andesine Labradorite (also known as Rainbow Moonstone) 0.491ct Loose Stone
Sold out コンクパール(火焔模様有り) 0.387ctルース
Sold out Diamond 0.120ct loose (G, VS2, Excellent H&C)
Sold out ナイジェリア産モルガナイト 0.889ctルース
Sold out Unheated Brazilian Bicolor Topaz (Bicolor Blue Topaz) 2.884ct Loose Gemstone
Sold out スリランカ産スターサファイア 5.225ctルース
Sold out スリランカ産スターサファイア 3.928ctルース
Sold out Indian Parrot Chrysoberyl Cat's Eye 1.225ct Loose
Sold out German Auchenite 0.083ct loose stone

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.