Oregon Sunstone 2.528ct loose
Sale price¥29,800
Oregon Sunstone 11.5mm/4.525ct Loose Stone (Vortex Cut)
Sale price¥19,800
Pink sapphire 0.881ct loose
Sale price¥18,800
Russian demantoid garnet cat's eye (horsetail recognized) 0.171ct loose
Sale price¥22,800
Russian demantoid garnet cat's eye (horsetail recognized) 0.222ct loose
Sale price¥29,800
Pink spinel 0.848ct loose stone 6.6mm
Sale price¥12,800
Mint green sapphire 0.348ct loose
Sale price¥12,800
Bicolor sapphire from Madagascar 0.252ct loose
Sale price¥14,800
Bicolor sapphire from Madagascar 0.265ct loose
Sale price¥16,800
Bicolor sapphire from Madagascar 0.293ct loose
Sale price¥18,800
Yellow sapphire from Sri Lanka 0.222ct loose
Sale price¥12,800
Goshenite 1.620ct loose
Sale price¥22,800
Goshenite 1.989ct loose
Sale price¥25,800
Dendritic Agate 2.964ct loose
Sale price¥15,800
Diaspore 1.209ct loose from Türkiye
Sale price¥21,800
Diaspore from Türkiye 0.858ct loose
Sale price¥21,800
Diaspore from Türkiye 0.712ct loose
Sale price¥17,800
Diaspore from Türkiye 0.636ct loose
Sale price¥15,800
Brazilian kyanite in quartz 4.770ct loose
Sale price¥16,800
Sphene from Madagascar 0.761ct loose
Sale price¥12,800
Sphene from Madagascar 1.899ct loose
Sale price¥24,800
Sphene from Madagascar 1.476ct loose
Sale price¥18,800
Brazilian dumortierite in quartz 3.901ct loose
Sale price¥19,800
Brazilian Medusa Quartz (Paraiba Quartz) 6.954ct loose
Sale price¥17,800
Bicolor Zoisite 1.210ct loose
Sale price¥19,800
Unheated silky pink sapphire from Vietnam 0.197ct loose
Sale price¥12,800
Unheated silky pink sapphire from Vietnam 0.247ct loose
Sale price¥12,800
Star garnet 14.400ct loose
Sale price¥11,000
Star garnet 14.600ct loose
Sale price¥11,000
Brazilian Medusa Quartz (Paraiba Quartz) 10.298ct loose
Sale price¥14,800
Brazilian dumortierite in quartz 9.490ct loose
Sale price¥25,800
Brazilian dumortierite in quartz 4.263ct loose
Sale price¥12,800
Brazilian dumortierite in quartz 4.180ct loose
Sale price¥12,800
Russian demantoid garnet (horsetail recognized) 3.7mm/0.231ct loose
Sale price¥22,800
Russian demantoid garnet (horsetail recognized) 3.8mm/0.232ct loose
Sale price¥18,800
[Rouge cut] Almandine garnet 4.632ct loose
Sale price¥15,800
[Rouge cut] Almandine garnet 3.214ct loose
Sale price¥15,800
[Rouge cut] Almandine garnet 2.661ct loose
Sale price¥12,800
Mexican cantera opal 12.610ct loose
Sale price¥29,800
Almandine garnet 2.964ct loose
Sale price¥15,800
Sphene from Madagascar 1.853ct loose
Sale price¥24,800
Bicolor chrysoberyl from Madagascar 1.753ct loose
Sale price¥26,800
Bicolor chrysoberyl from Madagascar 1.590ct loose
Sale price¥23,800
Bicolor chrysoberyl from Madagascar 1.003ct loose
Sale price¥15,800
Bicolor chrysoberyl from Madagascar 1.456ct loose
Sale price¥21,800
Bicolor chrysoberyl from Madagascar 1.520ct loose
Sale price¥22,800
[Mr. Takeshi Yamamoto] Rock crystal 43.123ct loose
Sale price¥25,800
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.