Madagascar Bicolor Sapphire 0.298ct Loose (Padparadscha Color)
Sale price¥35,800
Brazilian Bicolor Tourmaline Cat's Eye 9.5mm/4.730ct Loose Stone
Sale price¥18,800
Russian Demantoid Garnet (Horsetail Recognized) 5.1mm/0.664ct Loose Stone
Sale price¥188,000
Synthetic Black Opal 5.013ct Loose
Sale price¥59,800
Sri Lankan star sapphire 1.773ct loose
Sale price¥9,800
6.392ct Bicolor Sphalerite Loose Stone from Spain
Sale price¥69,800
Zimbabwean Euclase 2.976ct rough stone
Sale price¥98,000
[On sale from 10pm on 5/11] Spanish Sphalerite 6.2mm/1.320ct loose stone
Sale price¥19,800
Congo Andesine 18.643ct Loose Stone Japan-Germany Exchange
Sale price¥69,800
![[On sale from 10pm on 5/11] Madagascar bicolor sapphire 0.263ct loose stone (Padparadscha color)](http://store.karatz.jp/cdn/shop/files/P6290214_0a2f3276-e024-4679-9d97-b36ae25068c8.jpg?v=1749163100&width=4000)
Afghanistan Bicolor Beryl 9.100ct Loose Stone
Sale price¥34,800
Afghanistan Bicolor Beryl 9.490ct Loose Stone
Sale price¥29,800
Black star sapphire 0.930ct loose
Sale price¥6,980
American Benitoite 3.5mm/0.192ct Loose Stone (Contains Minerals)
Sale price¥69,800
Sri Lankan Star Sapphire 7.976ct Loose
Sale price¥98,000
Brazilian alexandrite 0.082ct loose
Sale price¥12,800
Brazilian Morganite 0.633ct loose stone
Sale price¥9,800
Russian Demantoid Garnet 3.0mm/0.194ct Loose Stone
Sale price¥18,800
Brazilian bicolor tourmaline cat's eye 2.640ct loose stone
Sale price¥12,800
Colombian emerald cat's eye 0.108ct loose
Sale price¥8,800
South African diamond rough stone 0.210ct
Sale price¥8,800
Madagascar Purple Sapphire 0.342ct Loose Stone
Sale price¥12,800
Cassiterite 1.676ct loose stone with certificate
Sale price¥45,800
Cassiterite 1.477ct loose stone (bicolor) with certificate
Sale price¥39,800
Colombian pyrite emerald 2.380ct rough stone
Sale price¥29,800
Tanzania Bicolor Zoisite 2.110ct Loose Stone
Sale price¥45,800
Australian Boulder Opal 6.160ct Loose
Sale price¥18,800
Australian Boulder Opal 4.980ct Loose
Sale price¥19,800
Indian Bloodshot Iolite Sunstone 7.630ct Loose
Sale price¥39,800
Garden quartz 8.690ct loose
Sale price¥2,980
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
Euclase from Colombia 5.223ct Ruth Japanese German edition
Sale price¥198,000
Myanmar Star Enstatite 0.870ct Loose Stone
Sale price¥14,800
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.