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Sold out Sri Lankan Hessonite Garnet 1.674ct Loose Stone
Sold out Afghanistan Bicolor Beryl 9.100ct Loose Stone
Sold out 0.745ct loose bicolor sapphire from Windsor, Tanzania
Sold out Australian boulder opal 15.004ct loose stone
Sold out American oil-free red beryl 2.6mm/0.050ct loose GIA
Sold out Mexican Fire Opal 0.281ct Loose
Sold out Pt950 Bicolor Sapphire Pendant Top (Necklace Top)
Sold out Indian Parrot Chrysoberyl 4.2mm/0.347ct Loose Stone
Sold out U.S. Red Beryl 3.2mm/0.111ct Loose Stone
Sold out U.S. Red Beryl 2.2mm/0.047ct Loose
Sold out 0.933 ct loose Brazilian aventurine beryl
Sold out パパラチアサファイア 0.191ctルース
Sold out Mexican Fire Opal (Faceted) 4.5mm/0.218ct Loose Stone
Sold out Bicolor tourmaline 3.242ct rough stone from Afghanistan
Sold out Myanmar orange jade (jade) 0.531ct loose
Sold out Hessonite Garnet from Sri Lanka 0.681ct Loose
Sold out Hessonite Garnet from Sri Lanka 0.530ct Loose Gemstone
Sold out Mexican fire opal 0.235ct loose (facet cut)
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
coming soon 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

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.