tanzanite

Tanzanite, the December birthstone, is the name given to blue to violet zoisite. It is also known for its strong pleochroism, which means that its color changes depending on the angle from which it is viewed. Its Mohs hardness is 6-7, but it has a cleavage that makes it vulnerable to impacts from certain directions, so if you wear it as jewelry, you should be careful not to expose it to strong impacts.

Carats Gem Magazine
" Tanzanite "

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[Mr. Sanjay] Tanzanite 0.545ct loose

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[Mr. Sanjay] Bicolor tanzanite 0.543ct loose

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Bicolor tanzanite 3.631ct loose

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Orange Zoisite 0.902ct Ruth (Orange Tanzanite)

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Tanzanite 1.779ct loose

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Tanzanite 7.645ct rough stone

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Tanzanite 2.044ct loose

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Tanzanite 5mm/0.569ct loose (princess cut)

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Tanzanite 2.417ct loose

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Tanzanite 8mm/2.270ct loose

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Purple Zoisite (Purple Tanzanite) 1.240ct loose

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Tanzanite 4.442ct loose (blue tanzanite)

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Bicolor Zoisite 2.291ct Loose (Bicolor Tanzanite)

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Tanzanite 1.290ct loose

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Lavender tanzanite 9.5mm/4.520ct loose

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K18ブルースピネル0.40ct ・タンザナイト・アクアマリンリング - カラッツSTORE

K18 blue spinel 0.40ct/tanzanite/aquamarine ring

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Tanzanite 2.428ct loose

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Tanzanite 1.946ct loose

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Tanzanite 2.127ct loose

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[Mr. Sanjay] Tanzanite 0.660ct loose

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Tanzanian tanzanite 33.016ct loose

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Tanzanite 7mm/1.620ct loose

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Tanzanite 5.2mm/0.60ct loose

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Tanzanite 1.950ct loose stone

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Pink zoisite (pink tanzanite) from Tanzania 0.209ct loose Japanese-German edition

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Tanzanite from Tanzania 4.5mm/0.456ct loose

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Tanzanite 3.150ct rough stone from Tanzania

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Tanzanite 1.180ct rough stone

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Tanzanite 0.710ct rough stone

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Tanzanite 0.650ct rough stone

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[Dandelion cut] Tanzanite 6mm/0.933ct《Collaboration》 Loose

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[Dandelion cut] Tanzanite 8mm loose with patch

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[Clover in cut] Tanzanite 7mm loose

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[Dandelion cut] Tanzanite 8mm loose with patch

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[Dandelion cut] Tanzanite 7mm loose with patch

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[Dandelion cut] Tanzanite 8mm loose

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[Sakura Incut] Tanzanite 7mm loose with patch

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[Sakura Incut] Tanzanite 8mm loose

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[Clover in cut] Tanzanite 7mm loose

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【クローバーインカット】タンザナイト 8mm ルースワッペン付 - カラッツSTORE

[Clover in cut] Tanzanite 8mm loose with patch

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[Koshu Precious Stone Kiriko] Tanzanite 2.360ct loose with patch

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Zoisite raw stone/loose 2 stone set 1.440ct (Tanzanite)

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Bicolor tanzanite 2.260ct loose

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Bicolor tanzanite 2.060ct loose

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Pink zoisite 2.840ct loose (peach pink tanzanite)

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Bicolor tanzanite 2.290ct loose

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Bicolor tanzanite 2.020ct loose

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Bicolor tanzanite 2.08ct 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.

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