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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 2.219ctルース

[On sale at 10pm on 7/21] Tanzanian lavender tanzanite 2.219ct loose stone Sale price¥55,800
タンザニア産タンザナイト 0.237ctルース

[On sale at 10pm on 7/16] Tanzanite from Tanzania 0.237ct loose stone Sale price¥8,800
Set of 2 Tanzanite stones from Tanzania (2mm, round cut) {Multiple purchase discount available}

Set of 2 Tanzanite stones from Tanzania (2mm, round cut) {Multiple purchase discount available} Sale price¥1,580
《Limited to 16 stones》1 tanzanite stone (octagonal cut, 3.0mm)《Multiple purchase discount available》

《Limited to 16 stones》1 tanzanite stone (octagonal cut, 3.0mm)《Multiple purchase discount available》 Sale price¥2,980
タンザナイト原石・ルース2石セット（シュガーローフカット）

Tanzanite raw stone/loose 2 stone set (sugar loaf cut)《Multiple purchase discount available》 Sale price¥6,980
Limited to 13 stones Gem gacha💎 Beautiful colored tanzanite 7mm, special cut sphene, heliodor (lots of inclusions) 1 loose stone Multiple purchase discounts available

Limited to 13 stones Gem gacha💎 Beautiful colored tanzanite 7mm, special cut sphene, heliodor (lots of inclusions) 1 loose stone Multiple purchase discounts available Sale price¥4,980
Limited to 21 stones: 1 loose Tanzanite stone from Tanzania (5 x 3 mm, oval cut) Multiple purchase discounts available

Limited to 21 stones: 1 loose Tanzanite stone from Tanzania (5 x 3 mm, oval cut) Multiple purchase discounts available Sale price¥4,980
タンザニア産タンザナイト 0.432ctルース

Tanzanite from Tanzania 0.432ct loose stone Sale price¥12,800
タンザニア産タンザナイト 0.477ctルース

Tanzanite 0.477ct loose stone (princess cut) from Tanzania Sale price¥12,800
タンザニア産タンザナイト 0.642ctルース

Tanzanite from Tanzania 0.642ct loose stone Sale price¥12,800
タンザニア産タンザナイト 0.520ctルース

Tanzanite from Tanzania 0.520ct loose stone Sale price¥12,800
タンザニア産バイカラータンザナイト 1.284ctルース

Tanzanian bicolor tanzanite 1.284ct loose stone Sale price¥29,800
タンザニア産タンザナイト 0.803ctルース

Tanzanite from Tanzania 5.8mm/0.803ct loose stone Sale price¥35,800
タンザナイト 1.540ctルース

Tanzanite 1.540ct loose stone Sale price¥49,800
タンザナイト 1.055ctルース

Tanzanite 1.055ct loose stone Sale price¥29,800
タンザナイト 1.458ctルース

Tanzanite 1.458ct loose stone Sale price¥39,800
タンザニア産タンザナイト 0.990ctルース

Tanzanite from Tanzania 0.990ct loose stone Sale price¥29,800
タンザニア産タンザナイト 1.045ctルース

Tanzanite from Tanzania 1.045ct loose stone Sale price¥29,800
タンザニア産タンザナイト 0.849ctルース

Tanzanite from Tanzania 0.849ct loose stone Sale price¥28,800
バイカラータンザナイト 0.585ctルース

Tanzanian bicolor tanzanite 5.0mm/0.585ct loose stone Sale price¥15,800
Pt950 タンザナイト 1.357ct リング

Pt950 Tanzanian Tanzanite 1.357ct Blue Zircon Pink Sapphire Ring Sale price¥128,000
タンザナイト 5.930ct原石

Tanzanite rough stone from Tanzania 5.930ct Sale price¥5,980
Limited to 9 stones: 1 Tanzanian purple zoisite (purple tanzanite) loose stone (4mm, round cut) Multiple purchase discounts available

Limited to 9 stones: 1 Tanzanian purple zoisite (purple tanzanite) loose stone (4mm, round cut) Multiple purchase discounts available Sale price¥5,980
タンザニア産タンザナイト 0.914ctルース

Tanzanite from Tanzania 0.914ct loose stone Sale price¥29,800
タンザナイト 0.531ctルース

Tanzanite from Tanzania 4.9mm/0.531ct loose stone Sale price¥12,800
タンザナイト 0.503ctルース

Tanzanite from Tanzania 4.7mm/0.503ct loose stone Sale price¥14,800
タンザニア産タンザナイト 0.559ctルース

Tanzanite from Tanzania 0.559ct loose stone Sale price¥9,800
タンザニア産タンザナイト 0.479ctルース

Tanzanite from Tanzania 0.479ct loose stone Sale price¥7,980
タンザニア産タンザナイト 0.331ctルース

Tanzanite from Tanzania 0.331ct loose stone Sale price¥5,980
タンザニア産タンザナイト 0.734ctルース

Tanzanite from Tanzania 0.734ct loose stone Sale price¥12,800
タンザニア産タンザナイト 0.338ctルース

Tanzanite from Tanzania 0.338ct loose stone Sale price¥8,800
タンザニア産タンザナイト 0.518ctルース

Tanzanite from Tanzania 0.518ct loose stone Sale price¥12,800
タンザニア産タンザナイト 0.513ctルース (シュガーローフカット）

Tanzanite 0.513ct loose stone (sugarloaf cut) from Tanzania Sale price¥9,800
タンザニア産タンザナイト 0.501ctルース

Tanzanite from Tanzania 0.501ct loose stone Sale price¥12,800
タンザニア産タンザナイト 1.053ctルース

Tanzanite from Tanzania 1.053ct loose stone Sale price¥25,800
タンザニア産タンザナイト 0.432ctルース

Tanzanite from Tanzania 0.432ct loose stone Sale price¥9,800
タンザニア産タンザナイト 0.580ctルース

Tanzanite from Tanzania 0.580ct loose stone Sale price¥14,800
タンザニア産タンザナイト 0.464ctルース

Tanzanite from Tanzania 0.464ct loose stone Sale price¥12,800
タンザニア産タンザナイト 0.495ctルース

Tanzanite from Tanzania 0.495ct loose stone Sale price¥12,800
タンザナイト 0.469ctルース

Tanzanite from Tanzania 0.469ct loose stone Sale price¥14,800
タンザナイト 0.269ctルース

Tanzanite from Tanzania 0.269ct loose stone Sale price¥9,800
タンザニア産タンザナイト 0.609ctルース

Tanzanite from Tanzania 0.609ct loose stone Sale price¥15,800
タンザニア産タンザナイト 0.481ctルース

Tanzanite from Tanzania 5.0mm/0.481ct loose stone Sale price¥12,800
Myanmar spinel and Tanzanite 7 stone set ring (Alterno setting)

Myanmar spinel and Tanzanite 7 stone set ring (Alterno setting) Sale price¥79,800
タンザニア産バイカラータンザナイト 4.804ct原石

Tanzanian bicolor tanzanite 4.804ct rough stone Sale price¥18,800
【12543382掲載】バイカラータンザナイト 1.644ct原石

Tanzanian bicolor tanzanite 1.644ct rough and loose stone set of 2 Sale price¥8,800
バイカラータンザナイト 3.018ct原石

Tanzanian bicolor tanzanite 3.018ct rough and loose stone set of 2 Sale price¥6,980
タンザナイト 1.36ルース

Tanzanite from Tanzania 1.36ct loose stone Sale price¥49,800

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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