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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.

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Citrine 0.833ct loose stone Sale price¥3,980

Beryl 0.951ct loose Sale price¥12,800

Sold out 【KEN氏】ラベンダータンザナイト 1.620ctルース - カラッツSTORE
Sold out 【KEN氏】ミントトルマリン 3.2mm/0.164ctルース - カラッツSTORE
Sold out 【KEN氏】アンダリュサイト 2.077ctルース - カラッツSTORE
Sold out アイオライト 1.185ctルース
Sold out 【KEN氏】アイオライト 1.157ctルース - カラッツSTORE
Sold out Rhodolite Garnet 5.3mm/0.788ct Loose Stone
Sold out メキシコ産トパーズ 1.470ctルース
Sold out シトリン 1.250ctルース
Sold out 【12546378掲載】メキシコ産ファイアオパール 1.030ctルース
Sold out 【KEN氏】オレゴンサンストーン 2.512ctルース
Sold out 【KEN氏】ヘソナイトガーネット 0.470ctルース
Sold out バイカラートルマリン 0.780ctルース
Sold out アメリカ産ペリドット 0.749ctルース
Sold out 【KEN氏】グリーンベリル 1.192ctルース - カラッツSTORE
Sold out 【KEN氏】スファレライト 3.900ctルース - カラッツSTORE
Sold out 【KEN氏】カラーチェンジサファイア 0.570ctルース - カラッツSTORE
Sold out オレゴンサンストーン 2.750ctルース(ボルテックスカット)
Sold out 【12526764掲載】トパーズ 2.380ctルース
Sold out トパーズ 1.770ctルース
Sold out 【12525350掲載】オレゴンサンストーン 1.310ctルース
Sold out アメジスト 6.480ctルース(ボルテックスカット)
Sold out オレゴンサンストーン 0.77ctルース

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.

KARATZ・Five Commitments

So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

KARATZ's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

KARATZ Books

These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.

jeweler's tools

For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.