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KEN's cut

Mr. KEN is a polishing craftsman living in America. I started my career in 1974 polishing opals, agates, and jade. His unique cut designs were created while cutting the agate, jade, and mossish stones he handled in the early days, and he specializes in geometric designs and concave cuts using lasers.

Mr. KEN mainly handled jewelry for the American market, but after meeting Koyama, the representative of KARATZ, at an American jewelry exhibition, he began making various cuts for KARATZ. Mr. KEN himself has a collection of old stock Oregon sunstones and Montana sapphires, and his cut pieces are exceptionally beautiful.

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.