Brazilian Paraiba tourmaline 0.065ct loose (CuO:2.0%, MnO:2.6%)
Sale price¥22,800
Colombian oil-free emerald 0.510ct loose GIA
Sale price¥598,000
American oil-free red beryl 2.6mm/0.050ct loose GIA
Sale price¥79,800
Sri Lankan Chrysoberyl Cat's Eye 1.340ct Loose Stone
Sale price¥6,980
Russian Alexandrite 0.091ct Loose Stone
Sale price¥69,800
Colombian pyrite emerald 8.044ct loose stone
Sale price¥188,000
Mexican Fire Opal 0.218ct Loose Stone (Faceted Cut)
Sale price¥18,800
Sri Lankan Moonstone 1.578ct Loose Gemstone
Sale price¥12,800
0.076ct Loose Madagascar Bekily Blue Garnet (Color Change Garnet)
Sale price¥9,800
0.451 ct loose Colombian emerald
Sale price¥39,800
Tourmaline 0.731ct loose
Sale price¥5,980
Mexican Fire Opal 0.277ct Loose (Faceted Cut)
Sale price¥5,980
Mexican Fire Opal 0.472ct Loose (Star Cut, Faceted Cut)
Sale price¥8,800
Mexican Fire Opal 0.564ct Loose (Faceted Cut)
Sale price¥12,800
Colombian trapiche emerald (reverse trapiche) 0.457ct rough stone
Sale price¥25,800
Cambodian blue zircon (Ratanakiri blue) 0.453ct loose
Sale price¥6,980
Pakistani Oil in Quartz 0.651ct Loose Stone
Sale price¥7,980
Pakistani Oil in Quartz 0.443ct Loose Stone
Sale price¥5,980
Oil-in-quartz 24.653ct rough stone from Madagascar
Sale price¥7,980
Oregon Sunstone 1.507ct loose
Sale price¥9,800
Oregon Sunstone 0.846ct loose
Sale price¥7,980
Oregon Sunstone 0.852ct loose
Sale price¥7,980
Mexican Opal 0.790ct Loose (Contrarus Opal, Faceted Cut)
Sale price¥18,800
Oil-in-quartz 31.973ct rough stone from Madagascar
Sale price¥8,800
Oil-in-quartz 30.677ct rough stone from Madagascar
Sale price¥8,800
Rubellite 0.549ct loose
Sale price¥19,800
Green tourmaline 2.007ct loose
Sale price¥29,800
Green tourmaline 0.388ct loose
Sale price¥8,800
Brown Diamond 5.2mm/0.561ct Loose (FANCY DARK BROWN, SI2)
Sale price¥29,800
Loose Pink Diamond, 2.5mm/0.097ct (FANCY PINK, SI2, Princess Cut)
Sale price¥148,000
Unheated Pigeon Blood Ruby 5.0mm/0.520ct Loose Stone AIGS
Sale price¥128,000
0.742ct Bicolor Kyanite Loose Stone from Nepal
Sale price¥18,800
Kenyan Idocrase 0.650ct Loose
Sale price¥12,800
0.097ct Grandidierite Loose Stone from Madagascar
Sale price¥29,800
Mongolian Color Change Andesine 0.882ct Loose Stone
Sale price¥19,800
Tibetan Andesine 0.348ct Loose Stone
Sale price¥12,800
Australian Prehnite 2.779 ct Loose Stone
Sale price¥12,800
Indian Parrot Chrysoberyl 4.5mm/0.375ct Loose Gemstone
Sale price¥15,800
Indian Parrot Chrysoberyl 4.2mm/0.347ct Loose Stone
Sale price¥12,800
0.933 ct loose Mozambican rubellite
Sale price¥25,800
Mexican Opal (Faceted) 0.208ct Loose Stone
Sale price¥9,800
Mexican Fire Opal 0.362ct Loose
Sale price¥15,800
0.227 ct Loose Pink Spinel from Mozambique
Sale price¥12,800
Cambodian blue zircon 1.126ct loose stone
Sale price¥18,800
Colombian emerald 0.159ct loose stone
Sale price¥47,800
Paraiba tourmaline from Brazil 0.162ct loose
Sale price¥69,800
U.S. Red Beryl 3.2mm/0.111ct Loose Stone
Sale price¥29,800
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.