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Ametrine 4.720ct loose Sale price¥3,980

Cantera opal 17.284ct loose Sale price¥39,800

Cantera Opal 8.678ct loose Sale price¥35,800

Conch pearl 0.800ct loose Sale price¥28,800

Pink spinel 0.591ct loose Sale price¥12,800

Pink spinel 0.777ct loose Sale price¥17,800

Pink spinel 0.594ct loose Sale price¥12,800

Pink spinel 0.585ct loose Sale price¥12,800

Tanzanite 1.680ct loose Sale price¥29,800

Sphalerite 11mm/7.286ct loose Sale price¥128,000

Star spinel 1.259ct loose Sale price¥18,800

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.