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opal

Opal is the birthstone for October. It is broadly divided into two types: "precious opal" which exhibits play-of-color effect, and "common opal" which does not. The impression changes greatly depending on whether there is a play-of-color effect or not, but the atmosphere also changes depending on the way the play-of-color appears and the pattern, and if you own one, you will want to collect many more, making it a collector's item.

Karatz GemMagazine
" opal "

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Green opal 15.950ct loose Sale price¥39,800

Cantera opal 14.581ct loose Sale price¥45,800

Black opal 2.293ct loose Sale price¥98,000

[KEN] Opal 0.101ct loose Sale price¥8,800

[KEN] Opal 0.458ct loose Sale price¥12,800

[KEN] Opal 0.536ct loose Sale price¥8,800

Opal 426.985ct rough stone Sale price¥39,800

Fire opal 1.547ct loose Sale price¥12,800

Iron opal 177.315ct loose Sale price¥22,800

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.