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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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タンザナイト 1.36ルース

Tanzanite from Tanzania 1.36ct loose stone Sale price¥49,800
タンザナイト 0.429ルース

Tanzanite from Tanzania 4.6mm/0.429ct loose stone Sale price¥12,800
タンザニア産タンザナイト 0.478ctルース

Tanzanite from Tanzania 0.478ct loose stone Sale price¥9,800
タンザニア産タンザナイト 0.351ctルース

Tanzanite from Tanzania 0.351ct loose stone Sale price¥9,800
Tanzanite rough and loose stone set of 2 (average 3.3ct, special cut) from Tanzania {Multiple purchase discounts available}

Tanzanite rough and loose stone set of 2 (average 3.3ct, special cut) from Tanzania {Multiple purchase discounts available} Sale price¥6,980
Tanzanite rough and loose stone set of 2 (average 3ct, cushion cut) from Tanzania {Multiple purchase discounts available}

Tanzanite rough and loose stone set of 2 (average 3ct, cushion cut) from Tanzania {Multiple purchase discounts available} Sale price¥6,980
タンザニア産タンザナイト 0.298ctルース

Tanzanite from Tanzania 0.298ct loose stone Sale price¥9,800
タンザニア産タンザナイト 0.250ctルース

Tanzanite from Tanzania 0.250ct loose stone Sale price¥7,980
タンザニア産タンザナイト 0.321ctルース

Tanzanite from Tanzania 0.321ct loose stone Sale price¥6,980
タンザニア産タンザナイト 0.250ctルース

Tanzanite from Tanzania 0.250ct loose stone Sale price¥8,800
タンザナイト 1.522ctルース

Tanzanite from Tanzania 1.522ct loose stone Sale price¥55,800
タンザナイト 0.804ctルース

Tanzanite from Tanzania 0.804ct loose stone Sale price¥24,800
タンザナイト 0.856ctルース

Tanzanite from Tanzania 0.856ct loose stone Sale price¥29,800
K18PGベニトアイト0.19 リング

K18PG American Benitoite 0.19ct Tanzanite Ring Sale price¥98,000
タンザニア産タンザナイト 0.482ctルース

Tanzanite 0.482ct loose stone (princess cut) from Tanzania Sale price¥18,800
タンザニア産タンザナイト 1.140ctルース

Tanzanite from Tanzania 1.140ct loose stone Sale price¥39,800
タンザニア産タンザナイト 0.945ctルース

Tanzanite from Tanzania 6.5mm/0.945ct loose stone Sale price¥28,800
タンザナイト 1.577ctルース

Tanzanite from Tanzania 1.577ct loose stone Sale price¥49,800
タンザナイト 1.162ctルース

Tanzanite from Tanzania 1.162ct loose stone Sale price¥39,800
タンザニア産タンザナイト 0.767ctルース

Tanzanite from Tanzania 0.767ct loose stone Sale price¥29,800
タンザナイト 1.243ctルース

Tanzanite from Tanzania 1.243ct loose stone Sale price¥45,800
タンザニア産タンザナイト 0.567ctルース

Tanzanite from Tanzania 0.567ct loose stone Sale price¥14,800
タンザナイト 0.789ctルース

Tanzanite from Tanzania 0.789ct loose stone Sale price¥18,800
タンザナイト 2.011ctルース

Tanzanite from Tanzania 2.011ct loose stone Sale price¥65,800
タンザナイト 6.006ctルース

Tanzanite from Tanzania 6.006ct loose stone Sale price¥228,000
K18 Indian Iolite Sunstone 0.73ct Tanzanite Ring

K18 Indian Iolite Sunstone 0.73ct Tanzanite Ring Sale price¥188,000
タンザニア産タンザナイト 0.492ctルース

Tanzanite from Tanzania 0.492ct loose stone Sale price¥14,800
タンザニア産タンザナイト 1.250ctルース

Tanzanite from Tanzania 1.250ct loose stone Sale price¥22,800
タンザニア産タンザナイト 6mm/0.889ct《コラボ》ルース ワッペン

[Sakura Shape] Tanzanite from Tanzania 6mm/0.889ct {Collaboration} Loose Patch Sale price¥59,800
【12551984掲載】バイカラータンザナイト 2.750ct原石

Tanzanian bicolor tanzanite rough stone 2.750ct Sale price¥9,800
Tanzanite from Tanzania 0.262ct loose stone

Tanzanite from Tanzania 0.262ct loose stone Sale price¥8,800
タンザニア産バイカラータンザナイト 2.454ct原石

Tanzanian bicolor tanzanite rough stone 2.454ct Sale price¥12,800
タンザニア産タンザナイト 0.491ctルース

Tanzanite from Tanzania 0.491ct loose stone Sale price¥8,800
タンザニア産タンザナイト 0.466ctルース

Tanzanite from Tanzania 0.466ct loose stone Sale price¥8,800
【スタッフセレクション】タンザナイト 0.231ctルース（セミオーダーメイドセット）

[Staff Selection] Tanzanite 0.231ct loose stone from Tanzania (semi-custom made set) Sale price¥47,800
ラベンダータンザナイト 0.498ctルース

Tanzanian Lavender Tanzanite 0.498ct Loose Stone Sale price¥14,800
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
【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

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.

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