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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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ラベンダータンザナイト 0.382ctルース

Tanzanian Lavender Tanzanite 0.382ct Loose Stone Sale price¥12,800
ラベンダータンザナイト 0.558ctルース

Tanzanian Lavender Tanzanite 0.558ct Loose Stone Sale price¥12,800
バイカラータンザナイト 0.573ctルース

Tanzanian bicolor tanzanite 0.573ct loose stone Sale price¥15,800
タンザニア産ラベンダータンザナイト 0.577ctルース

Tanzanian Lavender Tanzanite 0.577ct Loose Stone Sale price¥15,800
タンザニア産タンザナイト 0.497ctルース

Tanzanite from Tanzania 0.497ct loose stone Sale price¥12,800
タンザニア産タンザナイト 0.245ctルース

Tanzanite from Tanzania 0.245ct loose stone Sale price¥9,800
タンザナイト 0.385ctルース

Tanzanite from Tanzania 0.385ct loose stone Sale price¥9,800
タンザナイト 1.216ctルース

Tanzanite from Tanzania 1.216ct loose stone Sale price¥22,800
タンザニア産バイカラータンザナイト 0.544ctルース（セミオーダーメイドセット）

[Staff Selection] Tanzanian Bicolor Tanzanite 0.544ct Loose Stone (Semi-Custom Made Set) Sale price¥55,800
タンザナイト 0.760ctルース

Tanzanite 0.760ct loose stone (sugarloaf cut) Sale price¥9,800
タンザニア産タンザナイト 0.272ctルース

Tanzanite from Tanzania 0.272ct loose stone Sale price¥8,800
Dreamy 13-stone gemstone set (amethyst, pink sapphire, tanzanite, rhodolite garnet) and half eternity ring set (2.0mm)

Dreamy 13-stone gemstone set (amethyst, pink sapphire, tanzanite, rhodolite garnet) and half eternity ring set (2.0mm) Sale price¥79,800
【スタッフセレクション】タンザニア産タンザナイト 0.262ctルース（セミオーダーメイドセッ

[Staff Selection] Tanzanite 0.262ct loose stone from Tanzania (semi-custom made set) Sale price¥74,800
Tanzanite 1.891ct loose stone

Tanzanite 1.891ct loose stone Sale price¥39,800
Tanzanite 1.116ct loose stone

Tanzanite 1.116ct loose stone Sale price¥29,800
タンザナイト 0.754ctルース

Tanzanite 0.754ct loose stone Sale price¥9,800
タンザナイト 0.545ctルース

Tanzanite 0.545ct loose Sale price¥9,800
バイカラータンザナイト 3.856ct原石

Bicolor Tanzanite 3.856ct rough stone Sale price¥19,800
タンザナイト 1.004ctルース

Tanzanite 1.004ct loose stone Sale price¥22,800
Tanzanite 4.8mm/0.494ct loose stone

Tanzanite 4.8mm/0.494ct loose stone Sale price¥15,800
Bicolor Zoisite 0.450ct Loose Stone (Bicolor Tanzanite)

Bicolor Zoisite 0.450ct Loose Stone (Bicolor Tanzanite) Sale price¥18,800
ラベンダータンザナイト 0.784ctルース

Lavender Tanzanite 0.784ct loose stone Sale price¥14,800
Lavender Tanzanite 1.192ct loose stone

Lavender Tanzanite 1.192ct loose stone Sale price¥18,800
タンザナイト 0.580ctルース

Tanzanite 5mm/0.580ct loose stone (sugarloaf cut) Sale price¥9,800
Tanzanite 0.349ct loose

Tanzanite 0.349ct loose Sale price¥9,800
タンザナイト 0.328ctルース

Tanzanite 0.328ct loose stone Sale price¥8,800
タンザナイト 0.258ctルース

Tanzanite 0.258ct loose stone Sale price¥7,980
タンザナイト 0.535ctルース

Tanzanite 5mm/0.535ct loose stone (sugarloaf cut) Sale price¥9,800
タンザナイト 0.572ctルース

Tanzanite 5mm/0.572ct loose stone (sugarloaf cut) Sale price¥9,800
タンザナイト 0.520ctルース

Tanzanite 0.520ct loose (sugar loaf cut) Sale price¥9,800
タンザナイト 0.530ctルース

Tanzanite 0.530ct loose (sugar loaf cut) Sale price¥9,800
タンザナイト 0.647ctルース（シュガーローフカット）

Tanzanite 5mm/0.647ct loose stone (sugarloaf cut) Sale price¥9,800
タンザナイト 0.535ctルース（シュガーローフカット）

Tanzanite 5mm/0.535ct loose stone (sugarloaf cut) Sale price¥9,800
バイカラータンザナイト 0.581ctルース

Bicolor tanzanite 0.581ct loose Sale price¥23,800
タンザナイト 2.120ctルース

Tanzanite 2.120ct loose Sale price¥33,800
【12546376更新】タンザナイト 1.593ctルース

Tanzanite 1.593ct loose Sale price¥15,800
【12546375更新】タンザナイト 1.297ctルース

Tanzanite 1.297ct loose Sale price¥12,960
Bicolor tanzanite 1.619ct loose

Bicolor tanzanite 1.619ct loose Sale price¥25,800
Bicolor tanzanite 1.853ct loose

Bicolor tanzanite 1.853ct loose Sale price¥39,800
タンザナイト 0.449ctルース

Tanzanite 0.449ct loose Sale price¥6,980
バイカラータンザナイト 0.479ctルース

Bicolor tanzanite 0.479ct loose Sale price¥24,800
バイカラータンザナイト 0.345ctルース

Bicolor tanzanite 0.345ct loose Sale price¥19,800
【サンジェ氏】タンザナイト 0.647ctルース

[Mr. Sanjay] Tanzanite 0.647ct loose Sale price¥24,800
タンザニア産ピンクゾイサイト 6.7mm/1.393ctルース（ピーチタンザナイト）

Pink zoisite from Tanzania 6.7mm/1.393ct loose (peach tanzanite) Sale price¥148,000
タンザニア産バイカラータンザナイト 1.165ct原石

Bicolor tanzanite 1.165ct rough stone from Tanzania Sale price¥9,800
タンザニア産バイカラータンザナイト 1.161ct原石

Bicolor tanzanite 1.161ct rough stone from Tanzania Sale price¥8,800
タンザニア産バイカラータンザナイト 1.121ct原石

Bicolor tanzanite 1.121ct rough stone from Tanzania Sale price¥8,800

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