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Sold out Brazilian alexandrite 0.066ct loose (Hemachita mine)
Sold out Brazilian Alexandrite 0.073ct Ruth (Hemachita Mine)
Sold out [On Sale at 10 PM on December 7th] Madagascar Andesine Labradorite Moonstone (also known as Rainbow Moonstone) 0.178ct Loose Stone
Sold out Madagascar Iolite 0.644ct Loose Stone
Sold out [On Sale at 10 PM on December 7th] Rainbow Garnet (Andradite Garnet) 2.365ct Loose Stone from Tenkawa Village, Nara Prefecture
Sold out Indian Moonstone 5.1mm/0.426ct Loose Stone (Rose Cut)
Sold out バイカラータンザナイト 0.581ctルース
Sold out Brazilian alexandrite 0.112ct loose
Sold out Chrome tourmaline 0.300ct loose stone
Sold out ダイヤモンド原石(メイカブル) 0.247ct原石
Sold out Tanzanian Rhodolite Garnet 1.935ct Loose Stone with Certificate of Authenticity
Sold out Tanzanian Almandine Garnet 6.4mm/1.271ct Loose Stone
Sold out Brazilian Dumortierite in Quartz 1.924ct Loose Stone
Sold out Brazilian Dumortierite in Quartz 2.012ct Loose Stone
Sold out Pakistani Axinite (Green Tint) 0.844ct Loose Stone
Sold out Chinese cinnabar (cinnabar) 0.615ct loose stone (faceted)
Sold out ベトナム産非加熱シルキーピンクサファイア 0.197ctルース
Sold out スターガーネット 14.600ctルース
Sold out ロシア産デマントイドガーネット(ホーステール認む) 1.058ctルース
Sold out Brazilian Dumortierite in Quartz 1.995ct Loose Stone
Sold out Madagascar Bicolor Sapphire 3.6mm/0.232ct Loose
Sold out American benitoite 0.133ct loose
Sold out Madagascar Bicolor Sapphire 4.5mm/0.637ct 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 0.212ctルース
Sold out Colombian emerald 8.169ct rough stone
Sold out Colombian emerald rough stone 13.577ct
Sold out Brazilian Goshenite 0.527ct loose stone
Sold out Colombian emerald rough stone 6.933ct
Sold out Mali Garnet (Grossular/Andradite Garnet) 0.872ct Loose Stone from the Republic of Mali with Certificate of Authenticity
Sold out Kunzite from Afghanistan 26.784ct loose
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 Brazilian dumortierite in quartz 4.592ct loose
Sold out Madagascar Bicolor Sapphire 5.8mm/1.006ct Loose
Sold out Rainbow Garnet (Andradite Garnet) 7.0mm/2.135ct Loose Stone from Tenkawa Village, Nara Prefecture
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 Red coral (coral) 1.467ct loose stone
Sold out Red coral (coral) 1.406ct loose stone
Sold out Australian black opal 0.623ct loose stone
Sold out Sri Lankan blue sapphire 0.645ct loose stone
Sold out オパール 0.595ctルース
Sold out Citrine 0.833ct loose stone
Sold out アメジスト 8.044ctルース
Sold out ダンビュライト 1.427ctルース
Sold out アクアマリンキャッツアイ 3.528ctルース
Sold out メキシコ産ファイアーアゲート 3.800ctルース
Sold out Australian white opal 1.928ct 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.