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cantera opal

Cantera opal is a type of opal that is the birthstone for October, and refers to opal with a host rock that is mainly produced in Mexico. Many of them are polished into a round, round, egg-like shape, giving them a unique cuteness. It is said that the name comes from the Spanish word for the host rock, ``cantera'' (stone quarry).

Karatz GemMagazine
" Cantella Opal "

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.