Brazilian Paraiba Tourmaline in Quartz 0.295ct Loose Stone
Sale price¥14,800
Brazilian Swiss Blue Topaz 17.410ct Loose
Sale price¥27,800
Brazilian Swiss Blue Topaz 10.958ct Loose
Sale price¥14,800
Russian Demantoid Garnet 2.5mm/0.111ct Loose Stone
Sale price¥18,800
Madagascar Dumortierite 0.172ct loose stone (single crystal)
Sale price¥128,000
Afghanistan Bicolor Tourmaline 0.672ct Loose Stone
Sale price¥9,800
Afghanistan Bicolor Tourmaline 0.471ct Loose Stone
Sale price¥9,800
Afghanistan Bicolor Tourmaline 0.673ct Loose Stone
Sale price¥15,800
South African diamond rough (sawable) 0.096ct rough (with trigon)
Sale price¥39,800
Diamond (cabochon cut) 0.247ct loose (VS-SI class equivalent)
Sale price¥39,800
Pink tourmaline 0.333ct loose stone
Sale price¥9,800
Brazilian Green Tourmaline 0.549ct Loose Stone
Sale price¥9,800
Brazilian Green Tourmaline 0.457ct Loose Stone
Sale price¥15,800
Zambian Canary Yellow Tourmaline 4.0mm/0.277ct Loose Stone
Sale price¥12,800
Brazilian Tourmaline 0.615ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 2.116ct loose stone
Sale price¥18,800
Tanzanite from Tanzania 0.609ct loose stone
Sale price¥15,800
Brazilian bicolor tourmaline 0.837ct loose stone
Sale price¥15,800
Brazilian bicolor tourmaline 0.545ct loose stone (rose cut)
Sale price¥5,980
Brazilian bicolor tourmaline 0.549ct loose stone (rose cut)
Sale price¥8,800
South African diamond rough (sawable) 0.112ct rough
Sale price¥44,800
South African diamond rough (sawable) 0.091ct rough (trigon)
Sale price¥35,800
0.075 ct Loose Paraiba Tourmaline from Brazil (CuO: 1.7%, MnO: 1.9%)
Sale price¥45,800
Brazilian Paraiba Tourmaline in Quartz 1.171ct Loose Stone
Sale price¥18,800
Brazilian Paraiba Tourmaline in Quartz 1.674ct loose stone
Sale price¥19,800
Brazilian pink tourmaline 1.018ct loose stone
Sale price¥29,800
Yellow Diamond (Cabochon Cut) 0.185ct Loose
Sale price¥25,800
Brazilian Limonite in Topaz 20.777ct loose stone
Sale price¥39,800
Myanmar spinel and Tanzanite 7 stone set ring (Alterno setting)
Sale price¥98,000
Russian Demantoid Garnet (Horsetail) 3.5mm/0.187ct Loose Stone
Sale price¥45,800
Russian Demantoid Garnet (Horsetail certified) 2.4mm/0.066ct loose stone
Sale price¥12,800
Brazilian Pink Tourmaline 0.331ct Loose Stone
Sale price¥8,800
Colombian Trapiche Emerald 0.923ct Rough Stone
Sale price¥45,800
Brazilian Limonite in Topaz 8.994ct loose stone
Sale price¥19,800
Brazilian Paraiba Tourmaline in Quartz 8.0mm/1.199ct Loose Stone
Sale price¥25,800
Brazilian Pink Tourmaline 1.799ct Loose Stone
Sale price¥35,800
Brazilian Sky Blue Topaz (untreated) 2.013ct loose stone
Sale price¥12,800
Brazilian Sky Blue Topaz (untreated) 3.085ct loose stone
Sale price¥19,800
Diamond (cabochon cut) 0.233ct loose
Sale price¥39,800
Brazilian bi-color topaz (untreated) 1.452ct loose gemstone
Sale price¥18,800
Brazilian parti-color tourmaline 1.412ct loose stone
Sale price¥39,800
Brazilian Sky Blue Topaz (untreated) 0.968ct loose stone
Sale price¥12,800
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.