Bicolor star sapphire from Myanmar 0.920ct loose
Sale price¥39,800
Paraiba tourmaline from Brazil 0.129ct loose (Cu:0.6%,MnO:0.9%)
Sale price¥29,800
Labradorite (Spectrolite) from Finland 5.261ct loose
Sale price¥5,980
Labradorite (Spectrolite) from Finland 4.747ct loose
Sale price¥5,980
Green tourmaline 0.389ct loose
Sale price¥8,800
Mexican fire agate 19.730ct loose
Sale price¥19,800
Cornell pin from Tanzania 0.246ct loose
Sale price¥39,800
Tanzanian Kornerupine 0.277ct loose stone
Sale price¥29,800
Bicolor Euclase from Zimbabwe 0.211ct loose
Sale price¥79,800
Alexandrite cat's eye from Sri Lanka 0.947ct loose
Sale price¥18,800
[Moonsteiner] Pyrite in Quartz 8.099ct
Sale price¥59,800
Pyrite in quartz 3.492ct loose
Sale price¥8,800
Pyrite in quartz 15.971ct loose
Sale price¥12,800
South African yellow diamond (makeable) 0.159ct rough stone
Sale price¥12,800
Bekily Blue Garnet from Madagascar (color change garnet) 0.297ct loose
Sale price¥19,800
Opal 6mm/0.590ct loose (rose cut)
Sale price¥5,980
Tibetan bicolor andesine 1.856ct loose
Sale price¥16,800
Tibetan bicolor andesine 1.972ct loose
Sale price¥19,800
Unheated silky pink sapphire from Vietnam 0.202ct loose
Sale price¥6,980
Bicolor Euclase from Zimbabwe 0.375ct Ruth Japanese-German Edition
Sale price¥98,000
Benitoite 0.091ct loose (emerald cut)
Sale price¥25,800
Bulgarian green sphalerite 9.2mm/3.608ct loose Japanese-German edition
Sale price¥398,000
Myanmar orange jade (jade) 0.584ct loose
Sale price¥4,980
Indian bag site 1.763ct loose
Sale price¥7,980
Indian bag site 2.218ct loose
Sale price¥7,980
Indian bag site 1.513ct loose
Sale price¥7,980
Indian bag site 2.206ct loose
Sale price¥7,980
Indian bag site 2.010ct loose
Sale price¥6,980
Brazilian unheated particolor Paraiba tourmaline 0.84ct loose GIA
Sale price¥2,580,000
Rhodochrosite 0.331ct loose from Detroit City
Sale price¥25,800
Silky diamond 2.7mm/0.086ct loose
Sale price¥9,800
Silky diamond 2.8mm/0.097ct loose
Sale price¥9,800
Chrysoberyl cat's eye from Sri Lanka 0.340ct loose
Sale price¥9,800
Oil-in-quartz 22.073ct rough stone from Madagascar
Sale price¥4,980
Ubaite/dravite tourmaline 3.157ct rough stone
Sale price¥6,980
Mexican cantera opal 17.528ct loose
Sale price¥29,800
American benitoite 0.076ct loose
Sale price¥19,800
American benitoite 0.074ct loose
Sale price¥18,800
Pakistani oil-in quartz 0.535ct loose
Sale price¥14,800
Bicolor Benitoite 0.130ct loose (emerald cut)
Sale price¥65,800
Tibetan bicolor andesine 1.818ct loose
Sale price¥18,800
Paraiba tourmaline from Brazil 0.132ct loose (CuO:2.1%.MnO:2.2%)
Sale price¥188,000
American benitoite 0.069ct loose
Sale price¥19,800
South African yellow diamond (makeable) 0.202ct rough stone
Sale price¥15,800
South African gray diamond (makeable) 0.169ct rough stone
Sale price¥14,800
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.