pear shape
Colombian pyrite-mica emerald 0.739ct loose stone
Sale price¥36,800
Colombian pyrite-mica emerald 0.628ct loose stone
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.230ct Loose GIA (CuO: 0.9%, MnO: 1.1%)
Sale price¥158,000
Zimbabwean Apatite (UV type) 0.585ct loose stone
Sale price¥12,800
Zimbabwean Apatite (UV type) 1.393ct loose stone
Sale price¥29,800
Brazilian Morganite 4.720ct loose stone
Sale price¥98,000
Montana Sapphire 0.405ct Loose (Green Sapphire)
Sale price¥9,800
Montana Sapphire 0.331ct Loose (Bi-Color Sapphire)
Sale price¥8,800
Zimbabwean Blue Apatite (UV Type) 1.019ct Loose
Sale price¥14,800
Bicolor Euclase from Zimbabwe 0.033ct loose
Sale price¥28,800
Pakistani Lazurite (Azurite) 0.305ct Loose Stone
Sale price¥49,800
Paraiba Tourmaline from Brazil 0.067 ct loose (CuO: 1.4%, MnO: 2.4%)
Sale price¥45,800
Tanzania Bicolor Zoisite 0.397ct Loose Stone
Sale price¥8,800
Brazilian bicolor tourmaline 6.928ct loose stone (bicolor blue tourmaline)
Sale price¥298,000
Zimbabwean Blue Apatite (UV type) 1.056ct loose stone
Sale price¥15,800
Tanzanite from Tanzania 0.491ct loose stone
Sale price¥8,800
Tanzanite from Tanzania 0.466ct loose stone
Sale price¥8,800
American Bicolor Benitoite 0.358ct Loose Stone by Nikkei
Sale price¥298,000
Madagascar sapphire 0.377ct loose stone
Sale price¥12,800
Brazilian Green Tourmaline 12.252ct Loose Stone
Sale price¥398,000
Colombian pyrite in emerald 6.415ct loose stone
Sale price¥298,000
Tanzanian Lavender Tanzanite 0.498ct Loose Stone
Sale price¥14,800
Tanzanian Lavender Tanzanite 0.382ct Loose Stone
Sale price¥12,800
Tanzanian Lavender Tanzanite 0.558ct Loose Stone
Sale price¥12,800
Tanzanian bicolor tanzanite 0.573ct loose stone
Sale price¥15,800
Tanzanian Lavender Tanzanite 0.577ct Loose Stone
Sale price¥15,800
Oregon Sunstone from the United States 0.736ct loose stone
Sale price¥8,800
Tanzanite from Tanzania 0.245ct loose stone
Sale price¥9,800
Tanzania Bicolor Zoisite 0.295ct Loose Stone
Sale price¥8,800
Tanzanite from Tanzania 0.385ct loose stone
Sale price¥9,800
Tanzania Bicolor Zoisite 0.286ct Loose Stone
Sale price¥8,800
Brazilian Paraiba Tourmaline 0.060ct Loose (CuO:1.6%, MnO:2.3%)
Sale price¥45,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:2.0%, MnO:2.2%)
Sale price¥39,800
0.051ct loose Brazilian Paraiba Tourmaline (CuO: 1.9%, MnO: 2.5%)
Sale price¥39,800
Chameleon Diamond Green Diamond 0.122ct Loose (FANCY GRAY GREEN, SI2)
Sale price¥69,800
Montana Sapphire 0.254ct loose
Sale price¥9,800
Tanzanian Kornerupine Cat's Eye 0.866ct Loose Stone
Sale price¥5,980
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.