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Sold out オーストラリア産ブラックオパール 0.525ctルース
Sold out 【12562533掲載】オーストラリア産ブラックオパール 0.427ctルース
Sold out 【12562530掲載】オーストラリア産ブラックオパール 0.784ctルース
Sold out 【12562525掲載】オーストラリア産ブラックオパール 0.956ctルース
Sold out オーストラリア産ブラックオパール 3.871ctルース
Sold out Brazilian Bicolor Blue Topaz 1.317ct Loose Stone (Untreated)
Sold out 【12562398掲載】メキシコ産ファイアオパール 0.291ctルース
Sold out 【12561935掲載】バイカラーサファイア 0.900ctルース
Sold out 《Limited to 1 set》 Benitote gradation 6-stone set including orange benitoite (peach benitoite) (1.75mm, includes top quality) 《Multiple purchase discount available》
Sold out アメリカ産レッドベリル 0.120ctルース
Sold out モンタナサファイア 0.458ctルース
Sold out モンタナサファイア 0.416ctルース
Sold out 【12562025掲載】ブラジル産ライモナイトインブルートパーズ 6.701ctルース
Sold out 【12561996掲載】メキシコ産ファイアオパール 1.260ctルース
Sold out 0.085ct loose, non-oil red beryl from the United States, GIA
Sold out Montana Sapphire 0.449ct loose (bicolor sapphire)
Sold out アフガニスタン産ハックマナイト 0.111ctルース
Sold out [12548259 published] Padparadscha sapphire 0.524ct loose
Sold out バイカラートルマリン 0.974ctルース
Sold out 【12561916掲載】ペリドット 0.632ctルース
Sold out 【12561896掲載】ロンドンブルートパーズ 0.476ctルース
Sold out K18YG ベニトアイト 0.342ct リング
Sold out Pt950 ベニトアイト 0.17ct リング
Sold out 【12561174掲載】メキシコ産ファイアオパール(ファセットカット) 0.517ctルース
Sold out Brazilian London Blue Topaz 0.641ct Loose
Sold out 【12561913掲載】オーストラリア産ブラックオパール 0.221ctルース
Sold out Pt950 American Benitoite 0.09ct Peach Benitoite Pinky Ring
Sold out オーストラリア産ブラックオパール 0.565ctルース
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
coming soon Myanmar orange jade (jade) 0.584ct loose
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

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.