American red beryl 2.9mm/0.094ct loose
Sale price¥29,800
Unheated silky pink sapphire from Vietnam 0.426ct loose
Sale price¥9,800
Baddeleyite from Myanmar 0.279ct Ruth Japanese German edition
Sale price¥15,800
Montana Sapphire 3mm/0.155ct loose
Sale price¥18,800
Cobalt spinel from Vietnam 2mm/0.031ct loose Japanese-German edition
Sale price¥59,800
Greenland Ruby 0.253ct Loose Stone with Certificate
Sale price¥49,800
Greenland Ruby 0.266ct Loose Stone with Certificate
Sale price¥22,800
Greenland sapphire 0.133ct loose stone with certificate
Sale price¥14,800
Brazilian Green Tourmaline 5.0mm/0.401ct Loose Stone (Rose Cut)
Sale price¥9,800
Russian Demantoid Garnet (Horsetail) 3.8mm/0.249ct Loose Stone
Sale price¥39,800
Brazilian Blue Anatase 0.424ct Loose Stone
Sale price¥49,800
Madagascar Dumortierite (single crystal) 0.195ct loose stone
Sale price¥89,800
Sapphire from Madagascar 4.3mm/0.398ct loose
Sale price¥12,800
Hot Pink Spinel 0.203ct Loose (Mahenge Spinel)
Sale price¥8,800
Andalusite 0.293ct loose stone
Sale price¥3,980
Andalusite 0.192ct loose stone
Sale price¥2,980
Red beryl 0.136ct loose
Sale price¥25,800
Diamond 0.061ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
Diamond 0.042ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
Diamond 0.039ct loose (trapeze cut, equivalent to VS class)
Sale price¥5,980
Mexican Fire Opal 4.2mm/0.182ct Loose
Sale price¥8,800
Blue tourmaline from Afghanistan 4.5mm/0.326ct loose
Sale price¥7,980
Yellow sapphire from Madagascar 0.207ct loose
Sale price¥6,980
Madagascar sapphire 0.205ct loose
Sale price¥7,980
Afghanistan Hackmanite 0.177ct loose stone
Sale price¥14,800
Green sapphire from Madagascar 0.199ct loose
Sale price¥6,980
Yellow sapphire from Madagascar 0.181ct loose
Sale price¥4,980
Ice blue sapphire from Madagascar 0.181ct loose
Sale price¥6,980
[Posted 12544254] Cornel pin 0.228ct loose
Sale price¥18,800
Spinel from Sri Lanka 0.276ct loose
Sale price¥2,980
Russian Demantoid Garnet 0.192ct Loose Stone
Sale price¥79,800
Sri Lankan blue sapphire 0.187ct loose stone
Sale price¥29,800
American Peridot 0.283ct Loose Stone
Sale price¥8,800
Tanzanian Blue Zoisite 0.473ct Loose Stone
Sale price¥9,800
Madagascar Bicolor Sapphire 0.266ct Loose
Sale price¥16,800
Zimbabwean sphene 4.7mm/0.400ct loose stone
Sale price¥9,800
Mexican Opal 0.233ct Loose (Faceted)
Sale price¥12,800
Brazilian mint-colored emerald 0.491ct loose stone
Sale price¥15,800
Tanzanian Kornerupine 0.324ct Loose Stone
Sale price¥29,800
Madagascar Bicolor Sapphire 0.318ct Loose
Sale price¥25,800
Moldavite from the former Czechoslovakia, 0.097ct loose stone
Sale price¥8,800
Moldavite from the former Czechoslovakia, 0.095ct loose stone
Sale price¥8,800
Pezzottaite from Madagascar 0.198ct loose stone
Sale price¥15,800
Tanzanian bicolor sapphire 0.486ct loose stone
Sale price¥12,800
Russian Demantoid Garnet (Horsetail) 3.8mm/0.280ct Loose Stone
Sale price¥49,800
Russian Demantoid Garnet (Horsetail) 0.256ct Loose Stone
Sale price¥79,800
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.