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
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
Pink tourmaline 1.690ct loose
Sale price¥39,800
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
Chrome tourmaline 0.300ct loose stone
Sale price¥3,980
Yellow diamond rough stone (makeable) 0.247ct rough stone
Sale price¥22,800
Australian boulder opal 1.730ct loose
Sale price¥9,800
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
Myanmar purple spinel 0.750ct loose
Sale price¥8,800
Beryl 0.951ct loose
Sale price¥12,800
Beryl 6.5mm/1.032ct loose stone
Sale price¥12,800
Labradorite Moonstone 1.598ct Loose Stone Japanese-German
Sale price¥9,800
Bicolor sphene from Madagascar 1.242ct loose
Sale price¥59,800
Sphene from Madagascar 1.229ct loose
Sale price¥59,800
Oregon Sunstone 1.157ct loose
Sale price¥9,800
White topaz 16.06ct loose
Sale price¥29,800
Bicolor grossular garnet 0.782ct loose
Sale price¥16,800
South African rhodochrosite 1.333ct loose Japanese-German edition
Sale price¥128,000
Paraiba tourmaline from Brazil 0.34ct loose GIA
Sale price¥59,800
Dioptase from Namibia 3.1mm/0.132ct loose Japanese-German edition
Sale price¥69,800
Paraiba tourmaline from Mozambique 0.256ct loose
Sale price¥18,800
Paraiba tourmaline from Mozambique 0.207ct loose
Sale price¥12,800
Purple spinel 0.995ct loose stone
Sale price¥18,800
Mexican Fire Opal 4.5mm/0.244ct Loose
Sale price¥12,800
Myanmar star diopside 0.898ct loose
Sale price¥12,800
Paraiba tourmaline from Mozambique 0.215ct loose
Sale price¥12,800
Zircon 0.416ct loose
Sale price¥4,980
Colombian emerald cat's eye 0.110ct loose
Sale price¥12,800
Brazilian Paraiba tourmaline 0.420ct raw stone (CuO:1.6%, MnO:1.3%)
Sale price¥98,000
Paraiba tourmaline from Mozambique 0.229ct loose
Sale price¥12,800
Synthetic rutile 5.8mm/0.904ct loose stone
Sale price¥15,800
Spinel 1.680ct loose
Sale price¥8,800
Pink tourmaline (rose cut) 0.512ct loose
Sale price¥8,800
Bicolor tourmaline 0.397ct loose
Sale price¥8,800
Chrysoberyl cat's eye 0.844ct loose
Sale price¥12,800
Chrysoberyl cat's eye 0.861ct loose
Sale price¥18,800
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.