Brazilian Petalite 2.164ct loose stone
Sale price¥11,000
Brazilian Green Spodumene 7.9mm/1.721ct Loose Stone
Sale price¥8,800
Brazilian Green Spodumene 0.599ct Loose Stone
Sale price¥4,980
Brazilian Green Spodumene 6.484ct Loose Stone
Sale price¥29,800
Brazilian rhodonite 1.277ct loose stone
Sale price¥8,800
Brazilian Dumortierite in Quartz 0.154ct 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 0.652ct loose stone (faceted cut)
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.482ct loose stone (faceted cut)
Sale price¥5,980
Brazilian Dumortierite in Quartz 0.578ct loose stone (faceted cut)
Sale price¥5,980
Australian Opal 0.633ct Loose
Sale price¥9,800
Australian Opal 0.706ct Loose
Sale price¥8,800
Australian Opal 0.423ct Loose
Sale price¥6,980
Australian Opal 0.658ct Loose
Sale price¥8,800
Australian Opal 0.678ct Loose
Sale price¥5,980
Australian Opal 0.371ct Loose
Sale price¥8,800
Mexican Opal 0.461ct Loose
Sale price¥8,800
Mexican water opal 0.404ct loose stone
Sale price¥12,800
Mexican Fire Opal 1.320ct Loose
Sale price¥13,800
Montana Agate 6.534ct Loose Stone
Sale price¥6,980
Tanzanian Almandine Garnet 1.190ct Loose Stone
Sale price¥12,800
Pakistani bicolor sphene 3.980ct loose stone
Sale price¥188,000
![[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)
Euclase from Colombia 2.443ct Ruth Japanese German edition
Sale price¥148,000
Pt950 Sri Lankan cobalt spinel 0.697ct ring by Nikkei
Sale price¥98,000
Mexican Cantera Opal 18.00ct Loose
Sale price¥29,800
[On sale from 10pm on 5/4] Russian oil-free emerald 0.84ct loose GIA
Sale price¥248,000
Indian Star Garnet 11.440ct Loose Stone (6 Rows)
Sale price¥5,980
Myanmar Star Enstatite 0.870ct Loose Stone
Sale price¥14,800
Euclase from Colombia 5.223ct Ruth Japanese German edition
Sale price¥198,000
Zimbabwe bicolor euclase rough stone 0.367ct
Sale price¥29,800
Pakistani Veirinite 0.157ct loose stone with certificate
Sale price¥39,800
Pakistani Veirinite 0.173ct loose stone with certificate
Sale price¥45,800
South African Diamond Rough (Sawable) 0.107ct Rough Trigon
Sale price¥42,800
Garden quartz 8.690ct loose
Sale price¥2,980
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.