Myanmar Ubaite Tourmaline 4.0mm/0.251ct Loose Stone
Sale price¥22,800
Brazilian Green Tourmaline 12.252ct Loose Stone
Sale price¥398,000
Brazilian Paraiba Tourmaline 0.233ct loose stone (CuO: 1.6%. MnO: 2.4%)
Sale price¥358,000
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
Brazilian Pink Tourmaline 0.418ct Loose Stone (Rouge Cut)
Sale price¥9,800
Russian rough diamond (sawable) 0.088ct loose
Sale price¥22,800
Brazilian Paraiba Tourmaline 0.360ct Loose GIA
Sale price¥298,000
Brazilian Green Tourmaline 0.825ct Loose Stone
Sale price¥9,800
Brazilian Green Tourmaline 0.376ct Loose Stone
Sale price¥9,800
Brazilian Green Tourmaline 0.332ct Loose Stone
Sale price¥9,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 0.344ct Loose Stone
Sale price¥12,800
Tanzanite from Tanzania 0.497ct loose stone
Sale price¥12,800
Tanzanite from Tanzania 0.245ct loose stone
Sale price¥9,800
Tanzanite from Tanzania 0.385ct loose stone
Sale price¥9,800
Brazilian Paraiba Tourmaline 0.060ct Loose (CuO:1.6%, MnO:2.3%)
Sale price¥45,800
Russian Diamond Rough (Sawable) 0.103ct Loose (Trigon)
Sale price¥25,800
American Herkimer Diamond (Rock Crystal) 5.5mm/0.528ct Loose
Sale price¥8,800
Tanzanite 0.760ct loose stone (sugarloaf cut)
Sale price¥9,800
Russian rough diamond (sawable) 0.101ct loose
Sale price¥25,800
Brazilian Paraiba tourmaline in quartz 0.871ct loose
Sale price¥18,800
Mozambique colorless tourmaline (acroite) 3.542ct loose stone
Sale price¥69,800
American Herkimer Diamond (Rock Crystal) 5.5mm/0.534ct Loose
Sale price¥8,800
American Herkimer Diamond (Rock Crystal) 5.3mm/0.594ct Loose
Sale price¥8,800
Brazilian dumortierite in quartz 0.731ct loose
Sale price¥8,800
Brazilian dumortierite in quartz 0.496ct loose
Sale price¥6,580
Brazilian dumortierite in quartz 0.506ct loose
Sale price¥7,980
Brazilian dumortierite in quartz 0.309ct loose
Sale price¥4,980
Brazilian dumortierite in quartz 1.517ct loose
Sale price¥12,800
Brazilian dumortierite in quartz 3.247ct loose
Sale price¥25,800
Brazilian dumortierite in quartz 1.796ct loose
Sale price¥15,800
Diamond 0.534ct rough stone
Sale price¥9,800
Bicolor tourmaline 0.675ct loose
Sale price¥6,980
Pink tourmaline 0.489ct loose
Sale price¥6,980
Brazilian Dumortierite in Quartz 2.932ct loose
Sale price¥25,800
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.