Russian Demantoid Garnet (Horsetail) 3.8mm/0.280ct Loose Stone
Sale price¥49,800
Russian Alexandrite 0.049ct loose stone
Sale price¥49,800
German Apatite 0.073ct loose stone
Sale price¥32,800
Grandidierite from Madagascar 0.168ct loose stone
Sale price¥35,800
Pakistani Axinite (Green Tint) 1.476ct Loose Stone
Sale price¥39,800
Rhodochrosite 0.527ct loose from Detroit City, USA
Sale price¥45,800
Rhodochrosite 0.516ct loose from Detroit City, USA
Sale price¥45,800
Brazilian bicolor tourmaline 3.291ct loose
Sale price¥35,800
Brazilian bicolor tourmaline 3.569ct loose
Sale price¥35,800
Russian Demantoid Garnet (Horsetail) 3.8mm/0.255ct Loose Stone
Sale price¥39,800
Brazilian Alexandrite 0.097ct Loose Stone (Emerald Cut)
Sale price¥38,800
Pakistani Veirinite 0.147ct Loose Stone with Certificate of Authenticity
Sale price¥36,800
Greenland Sapphire 4.0mm/0.328ct Loose Stone with Certificate
Sale price¥39,800
Greenland Ruby 3.6mm/0.210ct Loose Stone with Certificate
Sale price¥45,800
German Auchenite 0.095ct loose stone
Sale price¥39,800
German Auchenite 0.085ct loose stone
Sale price¥45,800
German Auchenite 0.083ct loose stone
Sale price¥45,800
[12552640] Unheated Brazilian Paraiba Tourmaline 0.073ct loose stone
Sale price¥49,800
[12552618] Unheated Brazilian Paraiba Tourmaline 0.063ct loose stone
Sale price¥49,800
Euclase from Zimbabwe 0.409ct loose
Sale price¥45,800
Zimbabwean Bicolor Euclase 0.146ct Loose Stone
Sale price¥35,800
[Posted 32501454] Pink Diamond 0.051ct Loose (FANCY LIGHT PINK, SI-2)
Sale price¥39,800
Russian demantoid garnet (horsetail recognized) 0.291ct loose
Sale price¥49,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 1.490ct Loose (Faceted)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.039ct Loose Stone (CuO: 2.0%, MnO: 2.3%)
Sale price¥45,800
South African rough diamond (sawable) 0.105ct rough (with trigon)
Sale price¥39,800
Tanzanian Bicolor Grossular Garnet 1.359ct Loose Stone
Sale price¥49,800
German Apatite 0.097ct loose stone
Sale price¥39,800
[12560396] YAG (Yttrium Aluminum Garnet) 2.221ct Loose Stone
Sale price¥39,800
Zimbabwean Bicolor Euclase 0.183ct Loose Stone
Sale price¥49,800
Tanzanian magnesioaxinite 0.380ct loose stone, Japan-Germany Quantity
Sale price¥39,800
Particolor tourmaline 24.147ct loose
Sale price¥49,800
Illusion Tourmaline (Iridescent Tourmaline) 1.356ct Loose Stone
Sale price¥39,800
Pigeon Blood Ruby 0.280ct Loose
Sale price¥49,800
Myanmar Leuco Garnet 4.0mm/0.371ct Loose Stone
Sale price¥39,800
Mexican Cantera Opal 2.125ct Loose
Sale price¥39,800
Mexican Cantera Opal 5.882ct Loose
Sale price¥39,800
Pakistani Veirinite 0.177ct Loose Stone with Certificate of Authenticity
Sale price¥39,800
Cambodian blue zircon 4.203ct loose
Sale price¥39,800
Bicolor Zoisite 1.785ct loose
Sale price¥49,800
Hemimorphite 18.750ct loose
Sale price¥39,800
Mexican fire agate 33.195ct loose
Sale price¥39,800
Synthetic Moissanite 13mm/8.154ct Loose Stone
Sale price¥39,800
Lavender spinel 1.285ct loose
Sale price¥39,800
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.