Brazilian Pink Tourmaline 0.470ct Loose Stone
Sale price¥12,800
Vietnam Aquamarine 0.494ct Loose Stone
Sale price¥8,800
Brazilian Blue Tourmaline 0.196ct Loose
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.312ct Loose
Sale price¥8,800
Mozambique Rubellite 0.410ct Loose Stone
Sale price¥15,800
Colombian emerald cat's eye 0.138ct loose
Sale price¥17,800
Yellow Opal 0.372ct Loose (Faceted Cut)
Sale price¥8,800
0.421ct loose yellow sapphire from Ratnapura, Sri Lanka
Sale price¥11,800
Morganite 0.379ct loose stone
Sale price¥8,800
Benitoite 0.338ct loose stone
Sale price¥258,000
Australian Rainbow Lattice Sunstone 0.463ct Loose Stone
Sale price¥5,980
Tanzanian Kornerupine 0.199ct loose stone
Sale price¥19,800
Tanzanian Kornerupine 0.172ct loose stone
Sale price¥18,800
Tanzanian Kornerupine 0.356ct loose stone
Sale price¥49,800
Paraiba Tourmaline from Mozambique 0.153ct loose stone
Sale price¥9,800
Paraiba Tourmaline from Mozambique 0.154ct loose stone
Sale price¥9,800
Tanzanian Kornerupine 0.213ct loose stone
Sale price¥12,800
Color change sapphire 0.473ct loose stone (purple sapphire)
Sale price¥29,800
Madagascar Green Sapphire 0.253ct Loose
Sale price¥9,800
Madagascar Yellow Sapphire 4.4mm/0.417ct Loose
Sale price¥15,800
Madagascar Blue Sapphire 0.302ct Loose
Sale price¥16,800
Madagascar pink sapphire 0.346ct loose stone
Sale price¥16,800
Madagascar pink sapphire 0.243ct loose stone
Sale price¥9,800
Tanzania color change spinel 0.319ct loose stone
Sale price¥29,800
Purple spinel 0.403ct loose stone
Sale price¥5,980
Russian Demantoid Garnet Cat's Eye (Horsetail Recognized) 0.200ct Loose
Sale price¥29,800
0.165ct Unheated Silky Pink Sapphire from Vietnam
Sale price¥6,980
American red beryl 0.160ct loose
Sale price¥98,000
Mozambique Aquamarine 0.216ct Loose Stone
Sale price¥6,980
Mozambique Aquamarine 0.292ct Loose Stone
Sale price¥6,980
Mozambique Aquamarine 0.337ct Loose Stone
Sale price¥6,980
American Peridot 0.339ct Loose Stone
Sale price¥6,980
Detroit City Rhodochrosite 4mm/0.434ct Loose Stone
Sale price¥8,800
Colombian mint color emerald 0.294ct loose stone
Sale price¥9,800
Colombian mint color emerald 0.158ct loose stone
Sale price¥5,980
Colombian mint color emerald 0.136ct loose stone
Sale price¥6,980
Colombian mint color emerald 0.155ct loose stone
Sale price¥7,980
Brazilian Paraiba Tourmaline 0.177ct loose stone (CuO: 2.1%, MnO: 1.3%)
Sale price¥45,800
Yellow tourmaline 0.238ct loose stone
Sale price¥4,980
Colombian Trapiche Emerald 0.422ct Loose
Sale price¥22,800
Colombian emerald 0.153ct rough stone
Sale price¥7,980
Colombian emerald 0.202ct rough stone
Sale price¥9,800
Colombian emerald 0.499ct rough stone
Sale price¥15,800
Colombian emerald 0.443ct rough stone
Sale price¥9,800
Oregon Sunstone 0.272ct Loose
Sale price¥8,800
Tanzanian Kornerupine 0.298ct loose stone
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.216ct loose stone (CuO:1.2%, MnO:2.7%)
Sale price¥69,800
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.