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.

[On sale at 22:00 on 6/16] Synthetic Alexandrite 0.560ct loose stone Sale price¥14,800

[On sale 6/2 at 10pm] Synthetic Alexandrite 0.570ct loose stone Sale price¥18,800

Synthetic Alexandrite 0.561ct loose stone Sale price¥12,800

Synthetic Alexandrite 0.514ct loose stone Sale price¥12,800

Synthetic Alexandrite 0.472ct loose stone Sale price¥8,800

Synthetic Alexandrite 0.445ct loose stone Sale price¥8,800

Synthetic Alexandrite 0.411ct loose stone Sale price¥8,800

Synthetic Alexandrite 0.330ct loose stone Sale price¥9,800

Synthetic Alexandrite 0.502ct loose stone Sale price¥15,800

Synthetic Alexandrite 0.282ct loose stone Sale price¥9,800

Synthetic Alexandrite 0.578ct loose stone Sale price¥12,800

Synthetic Alexandrite 0.841ct loose stone Sale price¥15,800

Synthetic Alexandrite 0.287ct loose stone Sale price¥8,800

Synthetic Alexandrite 0.405ct loose stone Sale price¥9,800

Synthetic Alexandrite 0.471ct loose stone Sale price¥14,800

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

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Limited to 6 sets: Synthetic Alexandrite & Brazilian Alexandrite 2 stone set (Multiple purchase discounts available)

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Synthetic Alexandrite 0.481ct loose stone

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Synthetic Alexandrite 0.748ct loose stone

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Synthetic Alexandrite 0.594ct loose stone

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Synthetic Alexandrite 1.210ct loose stone

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Synthetic Alexandrite 0.259ct loose stone

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Synthetic Alexandrite 4.5mm/0.555ct loose stone

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Synthetic Alexandrite 1.524ct Loose Stone

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Synthetic Alexandrite 0.367ct loose stone

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Synthetic Alexandrite 0.338ct Loose Stone

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Synthetic Alexandrite 0.243ct Loose Stone

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Synthetic Alexandrite 0.264ct Loose Stone

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Synthetic Alexandrite 0.702ct Loose Stone

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Synthetic Alexandrite 0.342ct Loose Stone

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Synthetic Alexandrite 1.780ct Loose

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Synthetic alexandrite 0.187ct loose

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Synthetic alexandrite 1.229ct loose

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Synthetic alexandrite 0.495ct loose

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Synthetic alexandrite 0.455ct loose

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Synthetic alexandrite 0.443ct loose

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Synthetic alexandrite 3.716ct loose

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[On sale 6/2 at 10pm] Synthetic Alexandrite 0.491ct loose stone (princess cut)

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Synthetic Alexandrite 0.435ct loose stone

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Synthetic Alexandrite 0.501ct loose stone

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Synthetic Alexandrite 0.485ct loose stone

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Synthetic Alexandrite 0.490ct loose stone

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Synthetic Alexandrite 0.576ct loose stone

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Synthetic Alexandrite 1.514ct loose stone

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Synthetic Alexandrite 0.582ct loose stone

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[Sakura Shape] Synthetic Alexandrite 7.2mm/1.717ct Loose Stone

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Synthetic Alexandrite 0.742ct loose stone

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.

KARATZ・Five Commitments