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synthetic alexandrite

This is artificially created alexandrite.
Synthetic stones are mechanically created using the same ingredients in an environment similar to that of natural gemstones.
The biggest appeal of synthetic alexandrite is that you can easily enjoy rare, large grains with a deep color and a noticeable color change effect.

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合成アレキサンドライト 0.472ctルース

Synthetic Alexandrite 0.472ct loose stone Sale price¥8,800
合成アレキサンドライト 0.827ctルース

[September 20th, 10 PM Sale] Synthetic Alexandrite 5.7mm/0.827ct Loose Stone Sale price¥19,800
合成アレキサンドライト 1.538ctルース

[Sold at 10 PM on September 18th] Synthetic Alexandrite 1.538ct Loose Stone Sale price¥29,800
合成アレキサンドライト 1.552ctルース

[25.06CP] Synthetic Alexandrite 1.552ct Loose Stone Sale price¥18,800
合成アレキサンドライト 0.460ctルース

Synthetic Alexandrite 0.460ct loose stone Sale price¥14,800
合成アレキサンドライト 0.560ctルース

Synthetic Alexandrite 0.560ct loose stone Sale price¥14,800
合成アレキサンドライト 0.570ctルース

Synthetic Alexandrite 0.570ct loose stone Sale price¥18,800
合成アレキサンドライト 0.330ctルース

Synthetic Alexandrite 0.330ct loose stone Sale price¥9,800
合成アレキサンドライト 0.502ctルース

Synthetic Alexandrite 0.502ct loose stone Sale price¥15,800
合成アレキサンドライト 0.282ctルース

Synthetic Alexandrite 0.282ct loose stone Sale price¥9,800
合成アレキサンドライト 0.578ctルース

Synthetic Alexandrite 0.578ct loose stone Sale price¥12,800
合成アレキサンドライト 0.841ctルース

Synthetic Alexandrite 0.841ct loose stone Sale price¥15,800
合成アレキサンドライト 0.287ctルース

Synthetic Alexandrite 0.287ct loose stone Sale price¥8,800
合成アレキサンドライト 0.287ctルース

Synthetic Alexandrite 0.287ct loose stone Sale price¥8,800
合成アレキサンドライト 0.405ctルース

Synthetic Alexandrite 0.405ct loose stone Sale price¥9,800
合成アレキサンドライト 0.471ctルース

Synthetic Alexandrite 0.471ct loose stone Sale price¥14,800
Sold out Synthetic alexandrite 1 stone (round, mele size)《Discount available for multiple purchases》

Synthetic alexandrite 1 stone (round, mele size)《Discount available for multiple purchases》

Sold out 合成アレキサンドライト 0.561ctルース

Synthetic Alexandrite 0.561ct loose stone
Sold out 合成アレキサンドライト 0.514ctルース

Synthetic Alexandrite 0.514ct loose stone
Sold out 合成アレキサンドライト 0.445ctルース

Synthetic Alexandrite 0.445ct loose stone
Sold out 合成アレキサンドライト 0.411ctルース

Synthetic Alexandrite 0.411ct loose stone
Sold out 合成アレキサンドライト 0.491ctルース

Synthetic Alexandrite 0.491ct loose stone (princess cut)

Sold out 合成アレキサンドライト 1.680ctルース

Synthetic alexandrite 1.680ct loose

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.