Bicolor sapphire 0.231ct loose
Sale price¥6,980
Brazilian bicolor tourmaline 7.489ct loose
Sale price¥49,800
Almandine garnet 2.964ct loose
Sale price¥15,800
Morganite from Nigeria 0.889ct loose
Sale price¥4,980
Morganite from Nigeria 1.119ct loose
Sale price¥4,980
Mexican cantera opal 12.610ct loose
Sale price¥29,800
Diamond 0.777ct loose (butterfly cut)
Sale price¥77,777
Diamond 0.051ct loose (trapeze cut, VS class equivalent)
Sale price¥9,800
[Rouge cut] Almandine garnet 2.661ct loose
Sale price¥12,800
[Rouge cut] Almandine garnet 3.214ct loose
Sale price¥15,800
[Rouge cut] Almandine garnet 4.632ct loose
Sale price¥15,800
Unheated silky pink sapphire from Vietnam 0.175ct loose
Sale price¥7,980
Russian demantoid garnet (horsetail recognized) 3.8mm/0.232ct loose
Sale price¥18,800
Russian demantoid garnet (horsetail recognized) 3.7mm/0.231ct loose
Sale price¥22,800
Brazilian dumortierite in quartz 4.180ct loose
Sale price¥12,800
Brazilian dumortierite in quartz 4.263ct loose
Sale price¥12,800
Brazilian dumortierite in quartz 9.490ct loose
Sale price¥25,800
Brazilian Medusa Quartz (Paraiba Quartz) 2.757ct loose
Sale price¥5,980
Brazilian Medusa Quartz (Paraiba Quartz) 3.441ct loose
Sale price¥5,980
Brazilian Medusa Quartz (Paraiba Quartz) 5.809ct loose
Sale price¥8,800
Brazilian Medusa Quartz (Paraiba Quartz) 10.298ct loose
Sale price¥14,800
Russian demantoid garnet (horsetail recognized) 6.3mm/1.058ct loose
Sale price¥398,000
Star garnet 14.600ct loose
Sale price¥11,000
Star garnet 14.400ct loose
Sale price¥11,000
Unheated silky pink sapphire from Vietnam 0.247ct loose
Sale price¥12,800
Unheated silky pink sapphire from Vietnam 0.197ct loose
Sale price¥12,800
Mexican fire agate 3.800ct loose
Sale price¥5,980
Aquamarine cat's eye 3.528ct loose
Sale price¥5,980
Danburite 1.427ct loose stone
Sale price¥5,980
Amethyst 8.044ct loose
Sale price¥6,980
Bicolor Zoisite 1.210ct loose
Sale price¥19,800
Brazilian citrine 1.216ct loose stone
Sale price¥4,980
Citrine 0.833ct loose stone
Sale price¥3,980
Cambodian blue zircon 1.179ct loose
Sale price¥7,980
Brazilian Medusa Quartz (Paraiba Quartz) 6.954ct loose
Sale price¥17,800
Brazilian dumortierite in quartz 3.901ct loose
Sale price¥19,800
Opal 6mm/0.595ct loose (rose cut)
Sale price¥9,800
Montebrasite 0.373ct loose
Sale price¥9,800
Sphene from Madagascar 1.476ct loose
Sale price¥18,800
Sphene from Madagascar 1.899ct loose
Sale price¥24,800
Tourmaline cat's eye 0.910ct loose
Sale price¥6,980
Brazilian Trapichea Amethyst 24.772ct loose with patch
Sale price¥8,800
Chinese aragonite 36.409ct loose with patch
Sale price¥7,980
Brazilian kyanite in quartz 4.770ct loose
Sale price¥16,800
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.