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Brazilian

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Sold out 【12559896掲載】ブラジル産エレスチャルアメジスト 3.678ctルース
Sold out Color Change Gacha💎 Russian alexandrite, Brazilian alexandrite, and Tanzanian color-change garnets, usually priced at ¥39,800. 《Discounts for multiple purchases available》
Sold out Limited Edition of 16 Blue Stones (Bicolor Benitoite, Brazilian Paraiba Tourmaline, Santa Maria Aquamarine, etc.)
Sold out Brazilian Paraiba Tourmaline (CuO: 2.3% and CuO: 1.4%) & Kornerupine Rough Gacha 《Multiple Purchase Discount Available》
Sold out Pink tourmaline 0.341ct loose
Sold out Brazilian Yellow Beryl 1.473 ct Loose Stone
Sold out Brazilian Rhodonite in Quartz 8.6mm/1.865ct Loose Stone
Sold out Brazilian Imperial Topaz, 0.353 ct loose stone
Sold out 0.933 ct loose Brazilian aventurine beryl
Sold out Brazilian Dumortierite in Quartz 1.516ct Loose Gemstone
Sold out ブラジル産デュモルチェライトインクォーツ 0.852ctルース
Sold out パイライトインクォーツ 34.864ctルース
Sold out トリフィライトインクォーツ 13.378ctルース
coming soon ガーデンクォーツ 23.495ctルース
Sold out [Koshu Precious Stones plusthree] Brazilian Garden Quartz 47.809ct Loose
Sold out Blue tourmaline 0.369ct loose Japanese-German book
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 デュモルチェライトインクォーツ 3.814ct原石
Sold out Loose 0.901ct Imperial Topaz from Brazil with certificate
Sold out Brazilian unheated pink imperial topaz (sherry pink) 0.594ct loose stone with certificate of authenticity
Sold out Brazilian unheated pink imperial topaz (sherry pink) 0.438ct loose stone with certificate of authenticity
Sold out Loose Brazilian Medusa Quartz (Paraiba Quartz) 0.748ct
Sold out Brazilian Dumortierite in Quartz 1.736ct Loose
Sold out Brazilian Indicolite Tourmaline 0.342ct Loose
Sold out Brazilian bicolor tourmaline 1.016ct loose stone
Sold out ブラジル産ティンカーベルクォーツ(ピンクファイヤークォーツ) 6.004ctルース
Sold out Paraiba tourmaline from Brazil 0.066ct loose
Sold out Unheated Brazilian Bicolor Topaz (Bicolor Blue Topaz) 2.884ct Loose Gemstone
Sold out Panda Cut Gacha💎 Brazilian Paraiba Tourmaline (0.226ct/CuO: 0.7%, MnO: 2.5%) - 1 Stone, 5 Panda Cut Stones (Multiple Purchase Discounts Available)
Sold out K18/Pt950 Brazilian Paraiba tourmaline 0.071ct diamond ring (K18YG, CuO: 1.9%, MnO: 2.2%)
Sold out 18K Yellow Gold Brazilian Paraiba Tourmaline 0.048ct Diamond Pinky Ring (CuO: 1.7%, MnO: 2.2%)
Sold out Blue Stone Gacha💎 (Brazilian Paraiba Tourmaline, Mozambique Paraiba Tourmaline, German Auchenite, Benitoite) {Multiple Purchase Discounts Available}
Sold out [Takeshi Yamamoto] Brazilian Dendritic Quartz 25.875ct Loose
Sold out 【12560374掲載】ブルートパーズキャッツアイ 22.761ctルース
Sold out 0.848ct Loose Brazilian Medusa Quartz (Paraiba Quartz)
Sold out 0.361ct loose Brazilian Paraiba Tourmaline (CuO:1.0%, MnO:3.6%)
Sold out Brazilian Paraiba tourmaline 0.128ct loose stone (CuO: 1.7%, MnO: 3.4%)
Sold out Brazilian Pyrite in Quartz 9.477ct Loose Stone
Sold out Limited to 6 stones: 1 loose Brazilian pyrite in quartz (average 3.2 carats) Multiple purchase discounts available
Sold out ゴーシェナイト 1.989ctルース
Sold out ブラジル産トラピッチェアメジスト 24.772ctルース
Sold out デュモルチェライトインクォーツ 3.901ct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.