Round Cut
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.708ct Loose Stone
Sale price¥15,800
Mexican Hyalite Opal 6.0mm/0.708ct Loose
Sale price¥25,800
German Awinite 3.5mm/0.158ct loose stone
Sale price¥98,000
Myanmar Red Spinel 0.182ct Loose
Sale price¥8,800
Oregon Sunstone from the United States 8.0mm/1.835ct loose stone
Sale price¥22,800
Zimbabwe bicolor euclase 0.192ct loose stone
Sale price¥39,800
Blue sapphire 0.466ct loose stone
Sale price¥12,800
Madagascar Purple Spinel 5.2mm/0.651ct Loose Stone
Sale price¥8,800
Oligoclase Sunstone 15mm/10.593ct Loose
Sale price¥15,800
American Benitoite 3.1mm/0.129ct loose stone
Sale price¥59,800
Spanish Sphalerite 5.6mm/0.956ct loose stone
Sale price¥14,800
Spanish Sphalerite 5.6mm/0.841ct loose stone
Sale price¥12,800
Spanish Sphalerite 12.5mm/9.860ct Loose Stone
Sale price¥98,000
Madagascar Purple Sapphire 4.5mm/0.393ct Loose Stone
Sale price¥18,800
Madagascar Purple Sapphire 4.5mm/0.435ct Loose Stone
Sale price¥18,800
Madagascar Golden Iolite (Cordierite) 7.6mm/1.477ct Loose Stone
Sale price¥29,800
Tanzanite from Tanzania 5.8mm/0.803ct loose stone
Sale price¥35,800
Russian Demantoid Garnet (Horsetail certified) 2.4mm/0.063ct loose stone
Sale price¥39,800
Russian Demantoid Garnet (Horsetail certified) 4.6mm/0.464ct loose stone
Sale price¥128,000
Brazilian Lepidocrocite in Quartz 9.0mm/2.735ct Loose Stone
Sale price¥14,800
American Red Beryl 0.254ct Loose
Sale price¥59,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.794ct Loose Stone
Sale price¥15,800
Sri Lankan Blue Sapphire 4.2mm/0.333ct Loose Stone
Sale price¥12,800
Mozambique Rhodolite Garnet 5.7mm/1.188ct Loose Stone
Sale price¥12,800
Sri Lankan Blue Sapphire 4.3mm/0.371ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.531ct Loose Stone
Sale price¥29,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.309ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 4.3mm/0.292ct Loose Stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.328ct Loose Stone
Sale price¥12,800
American Benitoite 3.5mm/0.192ct Loose Stone (Contains Minerals)
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.