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Alexandrite from Russia

Alexandrite is a representative gemstone that has a color change effect that makes it look different depending on the light source. Russia is where alexandrite was first discovered and is said to be the source of many of the highest quality products. However, it is said that it is hardly produced in recent years, and there is not a large amount of it on the market.

Karatz GemMagazine
" Characteristics of Alexandrite by production area "

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[On Sale 2/7 at 10pm] Russian Alexandrite 0.091ct Loose Stone

[On Sale 2/7 at 10pm] Russian Alexandrite 0.091ct Loose Stone Sale price¥69,800
Sold out [On Sale 2/7 at 10 PM] Russian Alexandrite (normally ¥69,800) & Rare Twin Chrysoberyl Cat's Eye (normally ¥65,800) Alexandrite Gacha (Multiple Purchase Discounts Available)

[On Sale 2/7 at 10 PM] Russian Alexandrite (normally ¥69,800) & Rare Twin Chrysoberyl Cat's Eye (normally ¥65,800) Alexandrite Gacha (Multiple Purchase Discounts Available)
Sold out [Available at 10 PM on 2/21] Color Change Gacha! 💎 Three types of gemstones: Russian Alexandrite, Brazilian Alexandrite, and Tanzanian Color Change Garnet, normally priced at ¥39,800. Discounts available for multiple purchases.

[Available at 10 PM on 2/21] Color Change Gacha! 💎 Three types of gemstones: Russian Alexandrite, Brazilian Alexandrite, and Tanzanian Color Change Garnet, normally priced at ¥39,800. Discounts available for multiple purchases.
Sold out 1 Russian Alexandrite loose stone (round cut, 1.3-1.6mm) {Multiple purchase discount available}

1 Russian Alexandrite loose stone (round cut, 1.3-1.6mm) {Multiple purchase discount available}
Sold out [On Sale 2/1 at 10 PM] Russian Alexandrite 2.4mm/0.061ct Loose Stone

[On Sale 2/1 at 10 PM] Russian Alexandrite 2.4mm/0.061ct Loose Stone
Sold out ロシア産アレキサンドライト 0.049ctルース

Russian Alexandrite 0.049ct loose stone
Sold out ロシア産アレキサンドライト 0.088ctルース

Russian Alexandrite 0.088ct loose stone
Sold out ロシア産アレキサンドライト 0.333ctルース

0.333ct loose alexandrite from Russia

Sold out [On Sale at 10 PM on January 16th] Russian Alexandrite 2.2mm/0.058ct Loose Stone

[On Sale at 10 PM on January 16th] Russian Alexandrite 2.2mm/0.058ct Loose Stone

Sold out ロシア産アレキサンドライト 0.065ctルース

Russian Alexandrite 0.065ct loose stone
Sold out ロシア産アレキサンドライト 0.093ctルース

Russian alexandrite 0.093ct loose
Sold out ロシア産アレキサンドライト 0.046ctルース

Russian Alexandrite 2.2mm/0.046ct loose stone
Sold out ロシア産アレキサンドライト 0.163ctルース

Russian alexandrite 0.163ct loose

Sold out ロシア産アレキサンドライト 0.093ctルース

Russian alexandrite 0.093ct loose

coming soon 【4/26 22時販売】ロシア産アレキサンドライト 2.5mm/0.078ctルース

【4/26 22時販売】ロシア産アレキサンドライト 2.5mm/0.078ctルース Sale price¥49,800
Sold out ロシア産アレキサンドライト 0.074ctルース

Russian Alexandrite 0.074ct loose stone
Sold out ロシア産アレキサンドライト 0.058ctルース

Russian Alexandrite 0.058ct loose stone
Sold out ロシア産アレキサンドライト 0.058ctルース

Russian alexandrite 0.058ct loose

Sold out ロシア産アレキサンドライト 3.3mm/0.13ctルース GIA

Russian alexandrite 3.3mm/0.13ct loose GIA

Sold out ロシア産アレキサンドライト 3.3mm/0.14ctルース GIA

Russian alexandrite 3.3mm/0.14ct loose GIA

Sold out ロシア産アレキサンドライト 0.332ctルース

Russian alexandrite 0.332ct loose

Sold out ロシア産アレキサンドライト 0.285ctルース

Russian alexandrite 0.285ct 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.