Round Diamond 0.389ct Loose (Cabochon Cut)
Sale price¥39,800
Sri Lankan Blue Sapphire 4.3mm/0.371ct Loose Stone
Sale price¥12,800
Madagascar Blue Sapphire (Ice Blue) 0.694ct Loose
Sale price¥18,800
Madagascar pink sapphire 0.275ct loose stone
Sale price¥12,800
Madagascar Blue Sapphire (Ice Blue) 0.263ct Loose
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.309ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 4.3mm/0.292ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.328ct Loose Stone
Sale price¥12,800
Oregon Sunstone from the United States 0.596ct loose stone
Sale price¥12,800
Tanzania UV type bicolor tsavorite 0.947ct loose stone
Sale price¥39,800
Mozambique Almandine Garnet 0.965ct Loose Stone
Sale price¥12,800
Tanzanian Kornerupine 0.616ct loose stone
Sale price¥49,800
American Red Beryl 0.200ct Loose (Heart Shape) Nikkeikan
Sale price¥35,800
American Red Beryl 0.252ct Loose
Sale price¥39,800
Russian Demantoid Garnet (Horsetail Recognized) 5.1mm/0.664ct Loose Stone
Sale price¥188,000
Black star sapphire 0.930ct loose
Sale price¥6,980
American Benitoite 3.5mm/0.192ct Loose Stone (Contains Minerals)
Sale price¥69,800
Brazilian alexandrite 0.082ct loose
Sale price¥12,800
Brazilian Morganite 0.633ct loose stone
Sale price¥9,800
Colombian emerald cat's eye 0.108ct loose
Sale price¥8,800
South African diamond rough stone 0.210ct
Sale price¥8,800
South African Diamond Rough (Sawable) 0.107ct Rough Trigon
Sale price¥42,800
Pakistani Veirinite 0.173ct loose stone with certificate
Sale price¥45,800
Pakistani Veirinite 0.157ct loose stone with certificate
Sale price¥39,800
Myanmar Star Enstatite 0.870ct Loose Stone
Sale price¥14,800
Australian Opal 0.371ct Loose
Sale price¥8,800
Australian Opal 0.423ct Loose
Sale price¥6,980
Australian Opal 0.706ct Loose
Sale price¥8,800
Australian Opal 0.633ct Loose
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.578ct loose stone (faceted cut)
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.482ct loose stone (faceted cut)
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.652ct loose stone (faceted cut)
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.313ct loose stone (faceted cut)
Sale price¥6,980
Brazilian Dumortierite in Quartz 0.154ct loose stone (faceted cut)
Sale price¥9,800
Brazilian Green Spodumene 0.599ct Loose Stone
Sale price¥4,980
Sapphire 0.328ct loose stone
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.209ct Loose
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.318ct Loose
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.349ct Loose
Sale price¥15,800
Brazilian Paraiba tourmaline 0.184ct raw stone (CuO:1.5%, MnO:0.6%)
Sale price¥12,800
Brazilian Paraiba tourmaline 0.180ct raw stone (CuO:1.8%, MnO:0.1%)
Sale price¥12,800
Euclase from Brazil 0.210ct Ruth Japanese German edition
Sale price¥29,800
Brazilian Euclase 5.0mm/0.492ct Loose Stone
Sale price¥9,800
Colombian Euclase 2.360ct loose
Sale price¥79,800
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.