tourmaline

Tourmaline is one of the birthstones for October. It is a gemstone with so many color variations that it is said that there is no such thing as a non-existent color, and some gemstones show multiple colors within a single stone. It has the property of generating static electricity when heated, and its Japanese name is "tournament stone." Some are called by specific names depending on their color.

Karatz GemMagazine
" Tourmaline "

【2/11 22時販売】《限定16石》ブルー石ガチャ（バイカラーベニトアイト・ブラジル産パライバトルマリン、サンタマリアアクアマリンなど）《複数購入割引有》 Sale price¥4,980

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Paraiba tourmaline from Mozambique 0.240ct loose Sale price¥29,800

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Paraiba tourmaline from Mozambique 0.414ct loose Sale price¥45,800

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Paraiba tourmaline from Mozambique 0.246ct loose Sale price¥35,800

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【2/19 22時販売】ブラジル産ピンクトルマリン 6.782ctルース Sale price¥69,800

【2/8 22時販売】ザンビア産バイカラートルマリン 4.142ctルース Sale price¥98,000

ブラジル産パライバトルマリン 0.065ctルース（CuO:2.0%、MnO:2.6%）

[On Sale 2/2 at 10 PM] Brazilian Paraiba Tourmaline 0.065ct Loose Stone (CuO: 2.0%, MnO: 2.6%) Sale price¥22,800

Pink tourmaline 0.656ct loose Sale price¥7,980

Tourmaline 0.731ct loose Sale price¥5,980

Green tourmaline 2.007ct loose Sale price¥29,800

Green tourmaline 0.388ct loose Sale price¥8,800

Paraiba tourmaline from Brazil 0.162ct loose Sale price¥69,800

Paraiba tourmaline from Brazil 0.097ct loose Sale price¥22,800

Green tourmaline 1.258ct loose Sale price¥29,800

Paraiba tourmaline from Brazil 0.129ct loose (Cu:0.6%,MnO:0.9%) Sale price¥29,800

Bicolor tourmaline 3.242ct rough stone from Afghanistan Sale price¥5,980

Green tourmaline 0.389ct loose Sale price¥8,800

Ubaite/dravite tourmaline 3.157ct rough stone Sale price¥6,980

ブラジル産パライバトルマリン 0.132ctルース（CuO:2.1％.MnO:2.2％）

Paraiba tourmaline from Brazil 0.132ct loose (CuO:2.1%.MnO:2.2%) Sale price¥188,000

1 stone of Brazilian blue tourmaline (3 x 4 mm pear shape/oval cut/3 x 5 mm pear shape/4 x 5 mm oval cut)《Discount available for multiple purchases》 Sale priceFrom ¥2,980

{For beginners} Gem gacha💎 1 loose gemstone (Chrome tourmaline, Mahenge spinel, etc.) cut by Sri Lankan craftsman Sanjay {Multiple purchase discounts available} Sale price¥3,980

Limited to 20 stones: Brazilian Paraiba tourmaline (cabochon cut, approximately 2.2 mm) [Multiple purchase discounts available] Sale price¥9,800

Limited Edition of 12: Brazilian Indigolite Tourmaline Loose Stone (4x3mm, Oval Cut) - Multiple Purchase Discounts Available Sale price¥4,980

[Option] Paraiba Tourmaline component analysis sorting issuance fee Sale price¥5,000

Limited to 4 stones: Carving Gacha (pink tourmaline, average 3.4 carats) 1 loose stone (multiple purchase discounts available) Sale price¥3,980

Brazilian Paraiba Tourmaline Ring and Half Eternity Ring Set (1.2mm) Sale price¥198,000

[Option] Paraiba tourmaline analysis report attached identification certificate issuance fee Sale price¥15,000

[On Sale at 10 PM on January 21st] Brazilian Green Tourmaline 1.233ct Loose Stone Sale price¥69,800

Paraiba tourmaline from Mozambique 0.270ct loose Sale price¥18,800

Paraiba tourmaline from Brazil 0.066ct loose Sale price¥18,800

[Available at 10 PM on January 12th] K18/Pt950 Brazilian Paraiba Tourmaline and Diamond Pendant (Necklace) Sale price¥89,800

[1/11 22:00 Sale] Brazilian Green Tourmaline 4.345ct Loose Stone Sale price¥69,800

[1/11 22:00 Sale] Brazilian Blue Tourmaline 0.827ct Loose Stone Sale price¥19,800

[On Sale at 10 PM on January 9th] Brazilian Indigolite Tourmaline 0.421ct Loose Stone with Certificate of Authenticity Sale price¥35,800

[On Sale at 10 PM on January 6th] Brazilian Indigolite Tourmaline 1.470ct Loose Stone with Certificate of Authenticity Sale price¥98,000

[On Sale at 10 PM on January 9th] Brazilian Paraiba Tourmaline 0.361ct Loose Stone (CuO: 1.0%, MnO: 3.6%) Sale price¥198,000

[On Sale at 10 PM on January 9th] Brazilian Paraiba Tourmaline 0.115ct Loose Stone (CuO: 2.0%, MnO: 0.6%) Sale price¥59,800

Mint color tourmaline 0.198ct loose Sale price¥4,980

Mint color tourmaline 0.229ct loose Sale price¥4,980

Pink tourmaline 0.205ct loose Sale price¥4,980

Tourmaline cat's eye 0.910ct loose Sale price¥4,980

Tanzanian Chrome Tourmaline 0.164ct Loose Stone Sale price¥9,800

Brazilian Pink Tourmaline 5.0mm/0.484ct Loose Stone (Rose Cut) Sale price¥8,800

Brazilian green tourmaline 0.821ct loose stone Sale price¥12,800

Chrome tourmaline 0.300ct loose stone Sale price¥2,980

Brazilian green tourmaline 3.102ct loose stone Sale price¥69,800

Brazilian bicolor tourmaline 7.268ct loose stone Sale price¥158,000

Zambian bicolor tourmaline 4.019ct loose stone Sale price¥98,000

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.