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Rose Cut

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Sold out [With translation] Brazilian alexandrite (Hemachita mine, rose cut, max. 3.1mm) 1 stone loose
Sold out 1 rose cut diamond (VS-SI class equivalent, 3.0mm)《Multiple purchase discount available》
Sold out Diamond gacha💎Super rose cut diamond 1 stone loose《Multiple purchase discount available》
Sold out [Limited to 3 stones] 1 Illusion sunstone from Tanzania [Discount available for multiple purchases] (Rose cut, 2mm, Mr. NOBU cut)
Sold out ブラジル産アレキサンドライト 0.130ctルース
Sold out ブラジル産アレキサンドライト 0.134ctルース
Sold out ブラジル産アレキサンドライト 0.122ctルース
Sold out ブラジル産アレキサンドライト 0.121ctルース
Sold out ブラジル産アクアマリン 0.818ctルース
Sold out Nepalese bicolor kyanite 1.798ct 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.

The fifth reprint has been decided and is now on sale at bookstores nationwide and online.

Written by KARATZ, book “Jewelry Illustrated Book”

The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.