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colored stone loose

A list of colored stones and loose gemstones.

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Aquamarine 68.040ct loose Sale price¥39,800

Hackmanite 0.100ct loose Sale price¥8,800

Pink sapphire 0.278ct loose Sale price¥8,800

Star sapphire 2.580ct loose Sale price¥14,800

Tanzanite 41.690ct loose Sale price¥2,480,000

Star spinel 1.210ct loose Sale price¥15,800

[KEN] Zircon 0.592ct loose Sale price¥4,980

[KEN] Zircon 0.426ct loose Sale price¥5,980

[KEN] Zircon 0.371ct loose Sale price¥4,980

Red spinel 0.461ct loose Sale price¥18,800

Green zircon 1.200ct loose Sale price¥8,800

Green zircon 1.140ct loose Sale price¥6,980

Green zircon 1.100ct loose Sale price¥6,980

Green zircon 1.090ct loose Sale price¥6,980

Green zircon 0.980ct loose Sale price¥5,980

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.