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Sold out Russian Phenakite 0.615ct Loose Stone
Sold out 0.915ct Loose Ludwigite in Peridot from Pakistan
Sold out American benitoite 0.076ct loose
Sold out Benitoite 2.5mm/0.079ct loose
Sold out ブラジル産パライバトルマリン 0.132ctルース(CuO:2.1%.MnO:2.2%)
Sold out 18K Yellow Gold American Peridot 0.339ct Diamond Ring
Sold out American Peridot 0.770ct Loose Stone
Sold out Australian black opal 3.148ct loose
Sold out Australian black opal 0.435ct loose stone
Sold out 1.091ct loose Australian black opal
Sold out Brazilian bicolor tourmaline 1.016ct loose stone
Sold out アメリカ産レッドベリル 0.143ctルース
Sold out アメリカ産レッドベリル 0.115ctルース
Sold out アメリカ産レッドベリル 0.208ctルース
Sold out ブラジル産パライバトルマリン 0.243ctルース
Sold out Paraiba tourmaline from Brazil 0.066ct loose
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 K18/Pt950 Brazilian Paraiba Tourmaline and Diamond Pendant Top (Necklace Top)
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 Indian Parrot Chrysoberyl Cat's Eye 5.0mm/1.099ct Loose Stone
Sold out Indian Parrot Chrysoberyl Cat's Eye 5.6mm/1.715ct Loose Stone
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 American benitoite 0.147ct loose
Sold out American benitoite 0.127ct loose
Sold out American benitoite 0.133ct loose
Sold out American benitoite 0.187ct loose
Sold out マダガスカル産バイカラーサファイア 0.259ctルース
Sold out マダガスカル産バイカラーサファイア 0.198ctルース
Sold out マダガスカル産バイカラーサファイア 0.212ctルース
Sold out マダガスカル産バイカラークリソベリル 1.590ctルース
Sold out U.S. Peridot 5.1mm/0.573ct Loose
Sold out Brazilian Yellow Beryl 0.913ct Loose Stone
Sold out [On Sale at 10 PM on December 9th] American Peridot 0.855ct Loose Stone (Lily Pad Inclusions)
Sold out [12/10 22:00 Sale] Pakistani Ludwigite Peridot 0.609ct Loose Stone
Sold out [12/5 22:00] Russian Phenakite 6.6mm/1.058ct Loose Stone
Sold out オーストラリア産ボルダーオパール 1.730ctルース
Sold out Australian black opal 0.623ct loose stone
Sold out メキシコ産ファイアオパール 1.283ctルース
Sold out メキシコ産ファイアオパール 1.413ctルース
Sold out Australian Black Opal 0.825 ct Loose Stone
Sold out 1.837ct loose Australian black opal
Sold out Australian boulder opal 2.326ct loose
Sold out Brazilian bicolor tourmaline 7.017ct loose stone
Sold out Brazilian bicolor tourmaline 7.268ct loose stone
Sold out Zambian bicolor tourmaline 6.536ct loose stone
Sold out Madagascar Bicolor Sapphire 5.8mm/1.006ct Loose

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.