Pakistani Veirinite 0.157ct loose stone with certificate
Sale price¥39,800
![[Koshu Precious Stone Cutting] Fluorite in Quartz 6.420ct Loose Stone [Collaboration] Patch](http://store.karatz.jp/cdn/shop/files/collage_3269a09e-f7e8-4625-a34c-9b27a3584d4b.png?v=1746103198&width=2000)
Colombian emerald 8.90ct rough stone
Sale price¥45,800
Dominican Republic Conch Pearl 0.775ct Loose (with flame pattern)
Sale price¥39,800
![[Koshu Precious Stone Cut] Bicolor Fluorite 20.850ct Loose Stone [Collaboration] Patch](http://store.karatz.jp/cdn/shop/files/collage_cc003cbe-63f3-4a0a-9253-31012fc79497.png?v=1745533157&width=2000)
Zimbabwe bicolor euclase 0.110ct loose stone
Sale price¥49,800
Brazilian Pink Imperial Topaz 0.909ct Loose Japanese-German Edition
Sale price¥39,800
Afghanite from Afghanistan 0.193ct loose stone
Sale price¥39,800
Brazilian Paraiba tourmaline 0.229ct loose (CuO:0.6%, MnO:1.0%)
Sale price¥35,800
![[Koshu Precious Stone Cut] Scololite 5.350ct Loose Stone Patch](http://store.karatz.jp/cdn/shop/products/5350ct-167321_92a3d322-8cea-4718-867a-da0305e9cb8e.jpg?v=1745070984&width=1032)
[Koshu Precious Stone Cut] Scololite 5.350ct Loose Stone Patch
Sale price¥39,800
[Sakura Shape] Brazilian Green Tourmaline 6.7mm/1.057ct Loose Patch
Sale price¥39,800
Mexican Cantera Opal 3.176ct Loose
Sale price¥39,800
Russian alexandrite 0.093ct loose
Sale price¥39,800
Brazilian unheated pink imperial topaz (sherry pink) 0.476ct loose stone
Sale price¥39,800
Pt950 Sri Lankan purple sapphire 0.318ct and blue sapphire earrings
Sale price¥39,800
Myanmar color change zircon 0.596ct loose stone
Sale price¥39,800
0.095ct Brazilian Alexandrite Loose Stone (Emerald Cut)
Sale price¥35,800
Tanzanite from Tanzania 1.384ct loose stone
Sale price¥35,800
Myanmar Star Peridot 3.644ct Loose Stone
Sale price¥39,800
Russian Demantoid Garnet (Horsetail certified) 3.6mm/0.293ct loose stone
Sale price¥49,800
[Sakura Shape] Mexican Opal 8.2mm/1.465ct {Collaboration} Loose Patch
Sale price¥45,800
Yellow Diamond 4.7mm/0.390ct Loose (LIGHT YELLOW, VVS1, 3Excellent H&C)
Sale price¥49,800
American red beryl 0.080ct loose
Sale price¥39,800
Myanmar Leuco Garnet 0.504ct Loose Stone JTL Catalog
Sale price¥39,800
Pakistani Veirinite 0.164ct loose stone with certificate
Sale price¥45,800
Illusion Tourmaline (Iridescent Tourmaline) 2.266ct Loose Stone
Sale price¥39,800
Bicolor sapphire 0.404ct loose stone
Sale price¥39,800
Canadian Natrolite 7.1mm/0.982ct Loose Stone by Nikkei
Sale price¥35,800
South African diamond rough (sawable) 0.083ct rough
Sale price¥32,800
South African diamond rough (sawable) 0.102ct rough (with trigon)
Sale price¥45,800
South African diamond rough (sawable) 0.087ct rough
Sale price¥34,800
Yellow Diamond 0.551ct Loose (Cabochon Cut)
Sale price¥49,800
Brazilian alexandrite 0.145ct loose
Sale price¥35,800
Tanzanian Kornerupine 0.392ct loose stone
Sale price¥35,800
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.
業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。
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.