Russian demantoid garnet (horsetail recognized) 3.8mm/0.232ct loose
Sale price¥18,800
Pink tourmaline 9.954ct loose
Sale price¥49,800
Unheated silky pink sapphire from Vietnam 0.175ct loose
Sale price¥7,980
[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
Diamond 0.051ct loose (trapeze cut, VS class equivalent)
Sale price¥9,800
Diamond 0.777ct loose (butterfly cut)
Sale price¥77,777
Mexican cantera opal 12.610ct loose
Sale price¥29,800
Morganite from Nigeria 1.119ct loose
Sale price¥4,980
Morganite from Nigeria 0.889ct loose
Sale price¥4,980
Almandine garnet 2.964ct loose
Sale price¥15,800
Brazilian bicolor tourmaline 7.489ct loose
Sale price¥49,800
Bicolor sapphire 0.231ct loose
Sale price¥6,980
Bicolor sapphire 0.207ct loose
Sale price¥6,980
Bicolor sapphire 0.190ct loose
Sale price¥6,980
Tanzanian orange zircon 3.804ct loose
Sale price¥39,800
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
Kunzite from Afghanistan 26.784ct loose
Sale price¥69,800
Bicolor grossular garnet from Tanzania 2.454ct loose
Sale price¥12,800
Brazilian dumortierite in quartz 4.592ct loose
Sale price¥15,800
Pink tourmaline 1.690ct loose
Sale price¥39,800
Tanzania Kyanite 0.856ct loose stone
Sale price¥4,980
Bicolor Zoisite 0.581ct loose
Sale price¥15,800
Brazilian alexandrite 0.112ct loose
Sale price¥13,800
Bicolor tanzanite 0.581ct loose
Sale price¥23,800
Spanish bicolor sphalerite 6.230ct loose
Sale price¥79,800
Dendritic Agate 31.019ct Ruth Japanese/German
Sale price¥9,800
Chrome tourmaline 0.300ct loose stone
Sale price¥3,980
Mexican cantera opal 15.542ct loose
Sale price¥19,800
Mexican cantera opal 9.422ct loose
Sale price¥29,800
Mexican cantera opal 7.563ct loose
Sale price¥19,800
Australian boulder opal 1.730ct loose
Sale price¥9,800
Australian boulder opal 6.980ct loose
Sale price¥7,980
Sri Lankan Goethite Into Topaz 3.200ct loose
Sale price¥7,980
Red beryl 0.104ct loose
Sale price¥34,800
Brazilian Euclase 1.240ct loose
Sale price¥22,800
Brazilian Euclase 0.610ct loose
Sale price¥9,800
Red beryl 0.120ct loose
Sale price¥36,800
Fire opal 7mm/1.030ct loose stone
Sale price¥39,800
Tanzanite 1.593ct loose
Sale price¥15,800
Tanzanite 1.297ct loose
Sale price¥12,960
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.