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0.1ct - 2.0ct

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Sphene 1.100ct loose Sale price¥15,800

Sphene 0.940ct loose Sale price¥14,800

Diaspore 1.064ct loose Sale price¥5,980

Diaspore 1.620ct loose Sale price¥8,800

Diaspore 0.669ct loose Sale price¥4,980

Idocrace 1.634ct loose Sale price¥15,800

Star sapphire 0.973ct loose Sale price¥5,980

Smithsonite 1.527ct loose Sale price¥9,800

Smithsonite 1.147ct loose Sale price¥6,580

Zircon 1.430ct loose Sale price¥6,980

Diaspore 0.984ct loose Sale price¥6,980

Diaspore 0.902ct loose Sale price¥5,980

Red beryl 0.104ct loose Sale price¥19,800

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.