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Red/red system

An impressive red gemstone that hides gorgeousness and strength. Typical examples include ruby, red diamond, red spinel, almandine garnet, rubellite, red beryl, and blood red coral, but there are many others. Many have a pinkish or orange tinge, and even if you say red, the impression varies depending on the gemstone.

Karatz GemMagazine
" 10 Red Jewels "

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Sold out ビルマ産ピジョンブラッドルビー  0.300ctルース
Sold out 高知県産血赤珊瑚 1.524ctルース
Sold out ルビー 0.226ctルース
Sold out アメリカ産オレゴンサンストーン 1.441ctルース
Sold out スペイン産スファレライト 6.1mm/1.197ctルース
Sold out アメリカ産オレゴンサンストーン 1.389ctルース
Sold out ビルマ産ルビー 0.120ctルース
Sold out モザンビーク産ルビー 0.300ctルース
Sold out モザンビーク産ルビー 0.415ctルース
Sold out 中国・湖南省シンシャ(辰砂・シナバー) 1.750ctルース
Sold out 中国・湖南省シンシャ(辰砂・シナバー) 1.508ctルース
Sold out アルマンディンガーネット 0.660ctルース
Sold out ミャンマー産レッドスピネル 0.578ctルース
Sold out ミャンマー産レッドスピネル 0.174ctルース
Sold out ミャンマー産レッドスピネル 0.266ctルース
Sold out 血赤珊瑚 6.224ctルース
Sold out ルビー 0.496ctルース
Sold out 高知県産血赤珊瑚 2.423ctルース
Sold out 高知県産血赤珊瑚 1.879ctルース
Sold out 高知県産血赤珊瑚 5.779ct原石
Sold out 高知県産血赤珊瑚 20.726ct原石
Sold out 高知県産血赤珊瑚 21.156ct原石
Sold out 中国・湖南省シンシャ(辰砂・シナバー) 0.882ctルース
Sold out 中国・湖南省シンシャ(辰砂・シナバー) 0.629ctルース
Sold out 中国・湖南省シンシャ(辰砂・シナバー) 0.469ctルース
Sold out Untreated Vietnamese Star Ruby 1.696ct Loose Stone with Certification
Sold out 中国・湖南省シンシャ(辰砂・シナバー) 0.982ctルース
Sold out 中国・湖南省シンシャ(辰砂・シナバー) 0.935ctルース
Sold out 中国・湖南省シンシャ(辰砂・シナバー) 0.635ctルース
Sold out Ruby 0.289ct loose stone by Takakikyo
Sold out 高知県産血赤珊瑚 6.351ct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.