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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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Tanzanite 0.349ct loose Sale price¥9,800

Tanzanite 1.593ct loose Sale price¥15,800

Tanzanite 1.297ct loose Sale price¥12,960

Tanzanite 0.449ct loose Sale price¥6,980

Tanzanite 1.180ct loose Sale price¥24,800

Tanzanite 2.675ct loose Sale price¥32,800

Tanzanite 2.726ct loose Sale price¥118,000

Tanzanite 2.418ct loose Sale price¥59,800

Tanzanite 1.024ct loose Sale price¥15,800

Sold out ピンクゾイサイト(ピンクタンザナイト) 0.276ctルース 日独鑑

Tanzanite 41.690ct loose Sale price¥2,480,000

Tanzanite 1.614ct loose Sale price¥24,800

Tanzanite 6.320ct loose Sale price¥128,000

K18 Tanzanite 1.0ct Ring Sale price¥79,800

Sold out オレンジゾイサイト 1.057ctルース(オレンジタンザナイト) - KARATZ STORE|カラッツSTORE
Sold out タンザナイト 0.636ctルース - KARATZ STORE|カラッツSTORE
Sold out タンザナイト 0.721ctルース - KARATZ STORE|カラッツSTORE
Sold out タンザナイト 0.804ctルース - KARATZ STORE|カラッツSTORE

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.