Diamond 3.8mm/ 0.198ct Loose (D, VVS-2, VeryGood)
Sale price¥29,800
Diamond 0.229ct Loose (D, VS2, Flanders Cut)
Sale price¥39,800
Jeremejevite from Namibia 0.103ct Loose Stone with Certificate
Sale price¥25,800
0.147ct Loose Colombian Emerald with Gemological Report
Sale price¥12,800
Colombian Emerald 3.3mm/0.167ct Loose Stone with Appraisal
Sale price¥24,800
Columbia Emerald 3.3mm/0.158ct Loose Gemstone with Certificate
Sale price¥18,800
Brazilian Euclase 0.263ct Loose Stone (Colorless Euclase)
Sale price¥9,800
Brazilian Pink Tourmaline 0.418ct Loose Stone (Rouge Cut)
Sale price¥8,800
Brazilian Paraiba Tourmaline 0.060ct Loose (CuO:1.6%, MnO:2.3%)
Sale price¥42,800
Afghan Green Hauyne 3.6mm/0.135ct Loose with Certification
Sale price¥35,800
Jeremejevite from Namibia 0.089ct Loose Stone with Certificate
Sale price¥25,800
Euclase from Zimbabwe 0.183ct Loose Stone with Certificate
Sale price¥35,800
Zimbabwe Euclase 3.4mm/0.206ct Loose Stone with Certificate
Sale price¥29,800
Diamond (cabochon cut) 0.206ct loose
Sale price¥45,800
Chameleon Diamond Green Diamond 0.122ct Loose (FANCY GRAY GREEN, SI2)
Sale price¥69,800
Zimbabwean rough green diamond (sawable) 0.228ct rough (trigon)
Sale price¥79,800
Myanmar red spinel 3.3mm/0.172ct loose
Sale price¥8,800
Burmese Red Spinel 3.5mm/0.214ct Loose Stone
Sale price¥9,800
Myanmar Leuco Garnet 0.128ct Loose Stone with Certificate
Sale price¥25,800
0.080ct Loose Afghan Hauyne with Certificate
Sale price¥22,800
Madagascar bicolor sapphire 3.7mm/0.271ct loose
Sale price¥6,980
[12550865] 0.203ct loose zoisite from Tanzania
Sale price¥5,980
American Red Beryl 0.147ct Loose
Sale price¥35,800
0.065ct loose Paraiba tourmaline from Brazil (CuO: 1.6%, MnO: 2.4%)
Sale price¥49,800
American Red Beryl 0.132ct Loose
Sale price¥33,800
American red beryl 0.143ct loose
Sale price¥35,800
Nigerian Cobalt Gahnite 0.158ct Loose Stone with Certification
Sale price¥22,800
Nigerian Cobalt-bearing Gahnite 0.157ct Loose with Certificate
Sale price¥22,800
0.154ct Nigerian Cobalt Hausmannite Loose Stone with Certificate
Sale price¥24,800
Madagascar Padparadscha Sapphire 3.9mm/0.336ct Loose DGL Certified
Sale price¥45,800
Brazilian Paraiba Tourmaline 0.065ct Loose Stone (CuO: 2.0%, MnO: 2.4%)
Sale price¥49,800
0.066ct loose Brazilian Paraiba Tourmaline (CuO: 1.5%, MnO: 2.2%)
Sale price¥45,800
Paraiba Tourmaline from Brazil, 0.063 ct, loose (CuO: 1.8%, MnO: 2.4%)
Sale price¥55,800
0.062ct Loose Paraiba Tourmaline from Brazil (CuO: 1.7%, MnO: 2.5%)
Sale price¥47,800
Tanzanian Kornerupine 0.172ct loose stone
Sale price¥12,800
Paraiba tourmaline from Brazil 0.061ct loose
Sale price¥25,800
Paraiba tourmaline from Brazil 0.049ct loose
Sale price¥19,800
Tanzanian Kornerupine 0.213ct loose stone
Sale price¥12,800
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.
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.