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 "

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

[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

[On Sale at 10 PM on January 12th] 18K Yellow Gold Brazilian Paraiba Tourmaline 0.048ct Diamond Pinky Ring (CuO: 1.7%, MnO: 2.2%) Sale price¥98,000

[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

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

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

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

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¥188,000

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

[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

Zambian bicolor tourmaline 6.536ct loose stone Sale price¥128,000

Brazilian Paraiba tourmaline in quartz 2.954ct loose Sale price¥39,800

Paraiba tourmaline from Mozambique 0.229ct loose Sale price¥9,800

[1/4 22:00 Sale] Brazilian Tourmaline 0.270ct Loose Stone Sale price¥5,980

Brazilian Indigolite Tourmaline 0.431ct Loose Stone with Certificate of Authenticity Sale price¥29,800

Paraiba Tourmaline from Mozambique 2.037ct loose stone with gem analysis Sale price¥498,000

Pink tourmaline 0.516ct loose Sale price¥5,980

ブラジル産パーティカラーパライバトルマリン 0.149ctルース（CuO:1.4%、MnO:2.8%）

Particolor Paraiba tourmaline from Brazil 0.149ct loose (CuO:1.4%, MnO:2.8%) Sale price¥59,800

Paraiba tourmaline from Brazil 0.144ct loose (CuO:0.9%,MnO:2.8%) Sale price¥55,800

Brazilian bicolor tourmaline 4.497ct loose stone Sale price¥69,800

Brazilian Green Tourmaline 5.0mm/0.401ct Loose Stone (Rose Cut) Sale price¥9,800

Brazilian bicolor tourmaline 2.047ct loose Sale price¥29,800

Bicolor tourmaline 22.088ct loose Sale price¥298,000

Blue tourmaline from Afghanistan 4.5mm/0.326ct loose Sale price¥7,980

Brazilian Indigolite Tourmaline 0.210ct Loose Stone with Certificate of Authenticity Sale price¥9,800

Brazilian bicolor tourmaline 1.764ct loose Sale price¥32,800

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.