Oval Cut
Brazilian Green Tourmaline 0.831ct Loose Stone
Sale price¥25,800
Afghanistan Seafoam Tourmaline 0.253ct Loose Stone
Sale price¥15,800
Indian Alexandrite Cat's Eye 0.643ct Loose Stone
Sale price¥18,800
Colombian Trapiche Emerald 0.811ct Loose
Sale price¥59,800
Mongolian color change andesine 0.717ct loose stone
Sale price¥9,800
Hollandite in Amethyst 4.019ct loose stone
Sale price¥15,800
Brazilian Medusa Quartz (Paraiba Quartz) 2.147ct loose stone
Sale price¥6,980
Brazilian alexandrite 0.145ct loose
Sale price¥35,800
Sri Lankan Blue Spinel 0.519ct Loose Stone
Sale price¥12,800
American Red Beryl 0.140ct Loose
Sale price¥29,800
American Benitoite 0.083ct loose stone
Sale price¥22,800
American Benitoite 0.077ct loose stone
Sale price¥25,800
American Benitoite 0.067ct loose stone
Sale price¥19,800
Madagascar sphene 1.751ct loose stone
Sale price¥19,800
American Benitoite 0.286ct loose stone
Sale price¥158,000
Madagascar Dumortierite 0.172ct loose stone (single crystal)
Sale price¥128,000
Madagascar Pezzottaite 0.206ct loose stone
Sale price¥12,800
Pezzottite from Madagascar 0.158ct loose
Sale price¥9,800
Madagascar Pezzottaite 0.177ct loose stone
Sale price¥11,000
Tanzania Bicolor Zoisite 2.665ct Loose Stone
Sale price¥98,000
Namibian Jeremejevite 0.027ct loose stone
Sale price¥6,980
Namibian Jeremejevite 0.046ct loose stone
Sale price¥8,800
Jeremejevite from Namibia 0.025ct loose
Sale price¥6,980
Jeremejevite from Namibia 0.037ct loose
Sale price¥6,980
Namibian Jeremejevite 0.024ct loose stone
Sale price¥7,980
Blue sapphire 1.432ct loose stone
Sale price¥39,800
Brazilian Lepidocrocite in Quartz 0.713ct Loose Stone
Sale price¥3,980
Brazilian bicolor tourmaline 0.362ct loose stone
Sale price¥8,800
Brazilian bicolor tourmaline 0.837ct loose stone
Sale price¥15,800
Zimbabwean Euclase 0.029ct loose stone
Sale price¥19,800
Madagascar Bekiri Blue Garnet (Color Change Garnet) 0.824ct Loose Stone
Sale price¥39,800
Brazilian Limonite in Topaz 6.856ct loose stone
Sale price¥29,800
Silky pink sapphire from Madagascar 0.457ct loose stone
Sale price¥12,800
German Awinite 0.117ct loose stone
Sale price¥25,800
German Awinite 0.076ct loose stone
Sale price¥18,800
Emerald 0.354ct loose stone
Sale price¥8,800
Tanzanian Almandine Garnet 34.581ct Loose Stone
Sale price¥158,000
Burmese gray spinel 0.827ct loose stone
Sale price¥28,800
Tanzania gray spinel 0.844ct loose stone
Sale price¥18,800
Burmese hot pink spinel 0.181ct loose stone
Sale price¥18,800
Cambodian bicolor zircon 1.668ct loose stone
Sale price¥25,800
Australian black opal 4.528ct loose
Sale price¥39,800
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.