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
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
Australian Boulder Opal 6.160ct Loose
Sale price¥18,800
Australian Boulder Opal 4.980ct Loose
Sale price¥19,800
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
Indian Star Garnet 11.440ct Loose Stone (6 Rows)
Sale price¥5,980
Mexican Cantera Opal 18.00ct Loose
Sale price¥29,800
Euclase from Colombia 2.443ct Ruth Japanese German edition
Sale price¥148,000
![[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)
Pakistani bicolor sphene 3.980ct loose stone
Sale price¥188,000
Tanzanian Almandine Garnet 1.190ct Loose Stone
Sale price¥12,800
Montana Agate 6.534ct Loose Stone
Sale price¥6,980
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 rhodonite 1.277ct loose stone
Sale price¥8,800
Brazilian Green Spodumene 2.619ct Loose Stone
Sale price¥12,800
Brazilian Green Spodumene 1.943ct Loose Stone
Sale price¥9,800
Brazilian Green Spodumene 6.484ct Loose Stone
Sale price¥29,800
Brazilian Green Spodumene 0.599ct Loose Stone
Sale price¥4,980
Brazilian Spodumene 3.200ct loose stone
Sale price¥16,800
Brazilian Petalite 2.164ct loose stone
Sale price¥11,000
Brazilian Petalite 1.659ct 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.