Zimbabwean Bicolor Euclase 3.0mm/0.106ct Loose Gemstone
Sale price¥23,800
Unheated Brazilian Paraiba tourmaline 0.110ct loose AIGS
Sale price¥258,000
Paraiba Tourmaline Loose Stone from Brazil 0.068ct (CuO: 1.1% MnO: 0.1%)
Sale price¥45,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:1.2% MnO:1.2%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.048ct (CuO:1.5% MnO:1.0%)
Sale price¥35,800
Colombian emerald with pyrite 0.248ct rough stone
Sale price¥12,800
Russian Demantoid Garnet (Horsetail) 2.9mm/0.194ct Loose Stone
Sale price¥22,800
[12551250] Brazilian oil-free emerald 0.120ct loose stone
Sale price¥110,000
0.113 ct Zimbabwe Euclase loose gemstone
Sale price¥45,800
Gray Diamond 0.158ct Loose (FANCY DARK GRAY, I-1)
Sale price¥45,800
Brazilian Imperial Topaz 0.153ct Loose
Sale price¥5,980
Green tourmaline 0.090ct loose stone
Sale price¥5,980
Zambian Canary Yellow Tourmaline 0.158ct Loose Stone
Sale price¥9,800
Dioptase from Namibia 0.150ct loose Japanese-German book
Sale price¥49,800
Bicolor Tourmaline 0.649ct Loose Stone, Japan-Germany
Sale price¥12,800
Unheated Bicolor Paraiba Tourmaline 0.092ct Loose GIA
Sale price¥188,000
Nigerian Cobalt Garnet 0.095ct Loose with Certificate
Sale price¥18,800
Brazilian Lazulite 0.035ct Loose Stone with Certificate
Sale price¥24,800
Brazilian alexandrite 0.070ct loose
Sale price¥39,800
Cambodian blue zircon 0.197ct loose
Sale price¥5,980
Cambodian blue zircon 0.217ct loose
Sale price¥6,980
Cambodian blue zircon 0.267ct loose
Sale price¥6,980
Auinite 2.6mm/0.084ct loose
Sale price¥8,800
0.174ct Brown Diamond Loose (FANCY DARK BROWN, SI-2)
Sale price¥25,800
Zimbabwean bi-color euclase from Zimbabwe, 0.109 ct, loose stone
Sale price¥59,800
Benitoite from the USA, 0.064ct loose
Sale price¥29,800
German Apatite 0.048ct Loose Stone
Sale price¥19,800
0.175ct loose hot pink sapphire from Mozambique
Sale price¥15,800
Tanzanian Bicolor Zoisite 0.312ct Loose Stone
Sale price¥12,800
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
0.338ct Canadian Green Diamond Rough (Sawable) - With Trigons
Sale price¥128,000
Russian Alexandrite 0.091ct Loose Stone
Sale price¥69,800
Loose Pink Diamond, 2.5mm/0.097ct (FANCY PINK, SI2, Princess Cut)
Sale price¥148,000
Colombian emerald 0.159ct loose stone
Sale price¥47,800
Paraiba tourmaline from Brazil 0.162ct loose
Sale price¥69,800
Paraiba tourmaline from Brazil 0.097ct loose
Sale price¥22,800
Tanzanian Kornerupine 0.132ct Loose Stone
Sale price¥9,800
Canadian rough diamond (sawable) 0.096ct rough with trigon
Sale price¥29,800
Tanzanian Canary Yellow Chrysoberyl 0.139ct Loose Stone
Sale price¥16,800
Colombian emerald 0.105ct loose
Sale price¥31,800
Diamond rough (makeable) 0.204ct rough
Sale price¥39,800
Colombian emerald 0.091ct loose stone
Sale price¥15,800
Zimbabwean Bicolor Euclase 0.201ct Loose Stone
Sale price¥48,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.189ct Loose Stone
Sale price¥18,800
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.