Untreated Color-Change Brazilian Paraiba Tourmaline 0.050ct Loose Stone GIA
Sale price¥128,000
Brazilian Bicolor Euclase 2.4mm/0.051ct Loose Stone
Sale price¥18,800
Brazilian alexandrite 0.061ct loose
Sale price¥12,800
Brazilian alexandrite 0.058ct loose
Sale price¥11,000
Brazilian alexandrite 0.051ct loose
Sale price¥9,800
Brazilian alexandrite 0.060ct loose
Sale price¥11,000
Brazilian Lazulite 0.052ct Loose Stone with Certificate
Sale price¥32,800
0.056 ct loose Eudialyte from Canada with certificate
Sale price¥15,800
Brazilian Lazuilte (Lazulite) 0.066ct Loose Stone with Certificate
Sale price¥39,800
Russian Alexandrite 2.5mm/0.078ct Loose Stone
Sale price¥49,800
Jeremejevite 0.073ct Loose Stone from Namibia with Identification Report
Sale price¥15,800
Gray Diamond 2.8mm/0.089ct Loose (LIGHT GRAY, SI-2)
Sale price¥16,800
Zimbabwean Bicolor Euclase 3.0mm/0.106ct Loose Gemstone
Sale price¥23,800
Paraiba Tourmaline Loose Stone from Brazil 0.068ct (CuO: 1.1% MnO: 0.1%)
Sale price¥45,800
Brazilian Paraiba Tourmaline 0.051ct Loose Stone (CuO:1.1% MnO:0.6%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.048ct (CuO:1.5% MnO:1.0%)
Sale price¥35,800
Russian Demantoid Garnet (Horsetail) 2.9mm/0.194ct Loose Stone
Sale price¥22,800
Zambian Canary Yellow Tourmaline 0.158ct Loose Stone
Sale price¥9,800
Nigerian Cobalt Garnet 0.095ct Loose with Certificate
Sale price¥18,800
Brazilian Lazulite 0.067ct Loose with certificate
Sale price¥39,800
Brazilian Lazulite 0.035ct Loose Stone with Certificate
Sale price¥24,800
Brazilian alexandrite 0.070ct loose
Sale price¥39,800
Auinite 2.6mm/0.084ct loose
Sale price¥8,800
Benitoite from the USA, 0.064ct loose
Sale price¥29,800
German Apatite 0.048ct Loose Stone
Sale price¥19,800
Tanzanian Bekiri Blue Garnet (Color Change Garnet) 0.102ct Loose Stone
Sale price¥12,800
Diamond rough (makeable) 0.284ct rough
Sale price¥12,800
Loose Pink Diamond, 2.5mm/0.097ct (FANCY PINK, SI2, Princess Cut)
Sale price¥148,000
Canadian rough diamond (sawable) 0.096ct rough with trigon
Sale price¥29,800
Uncut Canadian diamond (sawable) 0.103ct
Sale price¥29,800
Colombian emerald 0.091ct loose stone
Sale price¥15,800
German Hauyne 2.7mm/0.076ct Loose Stone
Sale price¥29,800
Russian Alexandrite 0.083ct loose stone
Sale price¥69,800
Russian Alexandrite 0.049ct loose stone
Sale price¥49,800
Russian Alexandrite 2/5mm/0.070ct Loose Stone
Sale price¥59,800
German Awinite 0.063ct loose stone
Sale price¥29,800
Brazilian Alexandrite 0.097ct Loose Stone (Emerald Cut)
Sale price¥38,800
Brazilian Paraiba Tourmaline 0.039ct Loose Stone (CuO: 2.0%, MnO: 2.3%)
Sale price¥45,800
[12554117] Brazilian Alexandrite 0.058ct loose stone
Sale price¥14,800
South African rough diamond (sawable) 0.105ct rough (with trigon)
Sale price¥39,800
Colombian emerald 0.101ct loose stone
Sale price¥15,800
South African Diamond Rough (Sawable) 0.107ct Rough Trigon
Sale price¥42,800
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.