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 "

Tanzanite 4.940ct rough stone Sale price¥3,980

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

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》 Sale price¥2,980

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 Sale price¥4,980

Limited to 21 stones: 1 loose Tanzanite stone from Tanzania (5 x 3 mm, oval cut) Multiple purchase discounts available Sale price¥4,980

Tanzanite 2.726ct loose Sale price¥110,000

Tanzanite 2.418ct loose Sale price¥55,800

[On sale at 10pm on 7/21] Tanzanian bicolor tanzanite 2.304ct loose stone Sale price¥59,800

Tanzanian Lavender Tanzanite 2.219ct Loose Stone Sale price¥55,800

[On Sale at 10 PM on August 7th] Tanzanite from Tanzania 0.350ct Loose Stone Sale price¥8,800

Tanzanite from Tanzania 0.237ct loose stone Sale price¥8,800

Tanzanite from Tanzania 0.432ct loose stone Sale price¥12,800

Tanzanite 0.477ct loose stone (princess cut) from Tanzania Sale price¥12,800

Tanzanite from Tanzania 0.642ct loose stone Sale price¥12,800

Tanzanite from Tanzania 0.520ct loose stone Sale price¥12,800

Tanzanian bicolor tanzanite 1.284ct loose stone Sale price¥29,800

Tanzanite from Tanzania 5.8mm/0.803ct loose stone Sale price¥35,800

Tanzanite 1.540ct loose stone Sale price¥49,800

Tanzanite 1.055ct loose stone Sale price¥29,800

Tanzanite 1.458ct loose stone Sale price¥39,800

Tanzanite Zoisite 0.435ct loose stone Sale price¥12,800

Tanzanite from Tanzania 1.045ct loose stone Sale price¥29,800

Tanzanian bicolor tanzanite 5.0mm/0.585ct loose stone Sale price¥15,800

Pt950 Tanzanian Tanzanite 1.357ct Blue Zircon Pink Sapphire Ring Sale price¥128,000

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 Sale price¥5,980

Tanzanian bicolor tanzanite 0.815ct loose stone Sale price¥11,000

Tanzanite from Tanzania 0.878ct loose stone Sale price¥14,800

Tanzanite from Tanzania 4.9mm/0.531ct loose stone Sale price¥12,800

Tanzanite from Tanzania 4.7mm/0.503ct loose stone Sale price¥14,800

Tanzanite from Tanzania 1.384ct loose stone Sale price¥35,800

Tanzanite from Tanzania 0.559ct loose stone Sale price¥9,800

Tanzanite from Tanzania 0.479ct loose stone Sale price¥7,980

Tanzanite from Tanzania 0.331ct loose stone Sale price¥5,980

Tanzanite from Tanzania 0.734ct loose stone Sale price¥12,800

Tanzanite from Tanzania 0.338ct loose stone Sale price¥8,800

Tanzanite 0.513ct loose stone (sugarloaf cut) from Tanzania Sale price¥9,800

Tanzanite from Tanzania 1.053ct loose stone Sale price¥25,800

Tanzanite from Tanzania 0.432ct loose stone Sale price¥9,800

Tanzanite from Tanzania 0.580ct loose stone Sale price¥14,800

Tanzanite from Tanzania 0.495ct loose stone Sale price¥12,800

Tanzanite from Tanzania 0.469ct loose stone Sale price¥14,800

Tanzanite from Tanzania 0.269ct loose stone Sale price¥9,800

Tanzanite from Tanzania 7.0mm/1.427ct loose stone Sale price¥55,800

Tanzanite from Tanzania 0.609ct loose stone Sale price¥15,800

Tanzanite from Tanzania 5.0mm/0.481ct loose stone Sale price¥12,800

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.

KARATZ・Five Commitments

So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

KARATZ's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

KARATZ Books

These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.

jeweler's tools

For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.