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Sold out メキシコ産ファイアオパール 1.283ctルース
Sold out ミャンマー産スピネルインマーブル 39.231ctルース
Sold out Australian black opal 0.623ct loose stone
Sold out Sri Lankan blue sapphire 0.645ct loose stone
Sold out Red Coral from Kochi Prefecture (6.833ct Loose Stone)
Sold out Red coral (coral) 1.467ct loose stone
Sold out Red coral (coral) 1.406ct loose stone
Sold out [Sakura In-Cut] Mali Garnet (Grossular/Andradite Garnet) from the Republic of Mali, 6.0mm/0.920ct Loose Stone with Certificate of Authenticity
Sold out [Sakura Shape] Oregon Sunstone from the United States, 1.104ct Loose
Sold out Loose 1.206ct Oregon Sunstone from the USA
Sold out [Sakura Shape] Oregon Sunstone from the United States, 1.201ct Loose
Sold out [Sakura In-Cut] Oregon Sunstone from the United States, 6.0mm/0.685ct Loose
Sold out [Dandelion Cut] Madagascar Sphene 6.0mm/0.775ct Loose Stone
Sold out [Dandelion Cut] Madagascar Sphene 0.950ct Loose Stone
Sold out [Sakura In-Cut] Tibetan Andesine 6.0mm/0.631ct Loose Stone
Sold out [Sakura In-Cut] Tibetan Andesine 8.0mm/1.366ct Loose Stone
Sold out 【12546396掲載】スリランカ産ゲーサイトイントパーズ 3.200ctルース
Sold out マダガスカル産アンデシン・ラブラドライト(通称名 レインボームーンストーン) 0.696ctルース
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 ダイヤモンド原石(メイカブル) 0.247ct原石
Sold out Chrome tourmaline 0.300ct loose stone
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 White Diamond 6.2mm/0.988ct Loose (FANCY WHITE, I2)
Sold out [12/5 22:00] Russian Phenakite 6.6mm/1.058ct Loose Stone
Sold out Chinese Cinnabar (Cinnabar) 1.062ct Loose Stone with Certificate of Authenticity
Sold out Colombian emerald 3.0mm/0.098ct loose stone
Sold out Mali Garnet (Grossular/Andradite Garnet) 0.811ct Loose Stone from the Republic of Mali with Certificate of Authenticity
Sold out [12/10 22:00] Mali Garnet (Grossular/Andradite Garnet) 1.008ct Loose Stone from the Republic of Mali with Certificate of Authenticity
Sold out [12/10 22:00 Sale] Pakistani Ludwigite Peridot 0.609ct Loose Stone
Sold out Tanzanian Kornerupine 2.7mm/0.075ct Loose Stone
Sold out [12/6 22:00 Sale] Blue Coral (75.469ct) Loose Stone
Sold out [12/6 22:00] Myanmar Spinel in Marble 61.204ct Loose Stone
Sold out Colombian emerald rough stone 11.155ct (with pyrite)
Sold out [12/9 22:00 Sale] Sinhalite from Sri Lanka 0.658ct Loose Stone
Sold out [12/7 22:00] Sri Lankan Yellow Sapphire 0.508ct Loose
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) 5.4mm/0.771ct Loose Stone from Tenkawa Village, Nara Prefecture
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 Brazilian Dumortierite in Quartz 1.779ct Loose Stone
Sold out Brazilian dumortierite in quartz 4.592ct loose
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 Limited to 10 stones! Zimbabwean Bicolor Euclase, Bicolor Sapphire, and More! Bicolor Loose Stones! 💎 Single Loose Stones Available. Discounts Available for Multiple Purchases.
Sold out Brazilian Alexandrite 0.244ct Ruth (Hemachita Mine)
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 スターガーネット 14.600ct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.