Round Cut
Mica in Quartz 0.594ct loose stone
Sale price¥5,980
South African Sugilite 7.3mm/1.034ct loose stone
Sale price¥14,800
Sri Lankan Ilmenite in Star Sapphire 3.426ct loose stone (Ratnapura)
Sale price¥49,800
Rhodochrosite from Detroit City, USA 3.1mm/0.154ct loose stone
Sale price¥19,800
Rhodochrosite from Detroit City, USA 3.2mm/0.150ct loose stone
Sale price¥19,800
Gray Diamond, 2.9mm/0.096ct Loose (VERY LIGHT GRAY, SI-1)
Sale price¥15,800
Gray Diamond 2.8mm/0.089ct Loose (LIGHT GRAY, SI-2)
Sale price¥16,800
Brown Diamond 6.5mm/0.989ct Loose Stone (FANCY DARK ORANGE BROWN, SI-2)
Sale price¥98,000
Benitoite from the USA, 3.4mm/0.175ct loose
Sale price¥98,000
Brazilian Paraiba Tourmaline In Quartz 0.50mm/.313ct Loose
Sale price¥15,800
[Dandelion Cut] 7mm/1.412ct Sphene Loose Stone from Madagascar
Sale price¥59,800
Brazilian Morganite, 11mm/5.181ct Loose Stone
Sale price¥158,000
Brazilian Morganite 10mm/4.535ct Loose Stone
Sale price¥148,000
[12560352] Zimbabwean Euclase 0.397ct Loose Stone
Sale price¥98,000
Russian Demantoid Garnet (Horsetail) 2.9mm/0.194ct Loose Stone
Sale price¥22,800
Bulgarian Sphalerite 7.6mm/2.233ct Loose
Sale price¥69,800
Nepalese Bicolor Kyanite 6.3mm/0.903ct Loose Stone
Sale price¥9,800
Mica in Quartz 0.760ct Loose
Sale price¥5,980
Mica in Quartz 0.588ct Loose Stone
Sale price¥5,980
Mexican bicolor Danburite 1.932ct loose stone by Nikkei
Sale price¥29,800
American Oregon Sunstone 7.0mm/1.494ct Loose
Sale price¥35,800
Oregon Sunstone from the United States, 6.1mm/0.820ct loose stone
Sale price¥16,800
USA-origin Oregon Sunstone, 7.0mm/1.356ct loose
Sale price¥35,800
Synthetic Alexandrite 4.3mm/0.430ct Loose Stone
Sale price¥12,800
Auinite 2.3mm/0.060ct loose
Sale price¥6,980
Auinite 2.6mm/0.084ct loose
Sale price¥8,800
Auinite 2.4mm/0.064ct loose
Sale price¥8,800
Spanish Sphalerite 6.7mm/1.468ct Loose
Sale price¥25,800
Spanish Sphalerite 7.1mm/1.708ct Loose Stone
Sale price¥29,800
Bicolor Sphalerite from Spain 6.6mm/1.496ct Loose
Sale price¥25,800
Spanish Sphalerite 5.7mm/0.903ct Loose
Sale price¥16,800
Russian Demantoid Garnet (Horsetail) 5.8mm/0.851ct Loose Stone
Sale price¥198,000
Oregon Sunstone from the United States, 7.0mm/1.260ct loose stone
Sale price¥12,800
Oregon Sunstone from USA 7.1mm/1.308ct Loose Stone
Sale price¥19,800
American Anthill Garnet 4.0mm/0.359ct Loose
Sale price¥12,800
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.