Brazil Color Change Amethyst 6.559ct Loose Stone
Sale price¥15,800
Brazilian Limonite in Topaz 7.141ct Loose
Sale price¥19,800
Bicolor Tanzanite 5.582ct rough stone
Sale price¥18,800
Spanish sphalerite 6.392 ct loose stone
Sale price¥79,800
Mexican Cantera Opal 7.520 ct Loose Stone with Appraisal
Sale price¥24,800
Mexican Cantera Opal 5.811 ct Loose Stone with Certificate
Sale price¥29,800
Brazilian Dendritic Agate 5.107ct Loose Stone
Sale price¥6,980
Dendritic Agate from Brazil, 5.192ct Loose Stone
Sale price¥6,980
Brazilian Dendritic Agate Loose Stone 7.063ct
Sale price¥3,980
Brazilian Mica in Rose Quartz (雲母 in Rose Quartz) 7.882ct Loose
Sale price¥9,800
Brazilian Mica in Rose Quartz 8.773ct Loose Stone
Sale price¥9,800
Brazilian Mica in Rose Quartz Cabochon, 8.477ct
Sale price¥11,000
Green Spodumene 6.419ct loose stone
Sale price¥15,800
Spodumene 9.001ct loose stone
Sale price¥22,800
Spodumene 9.730ct loose stone
Sale price¥22,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 6.020ct Loose Stone
Sale price¥15,800
Mexican Cantera Opal 7.619 ct Loose Stone
Sale price¥25,800
Mexican Cantera Opal 7.207ct Loose
Sale price¥25,800
6.558ct Loose Australian Black Opal with Certificate of Authenticity
Sale price¥39,800
Brazilian Morganite, 11mm/5.181ct Loose Stone
Sale price¥158,000
Synthetic Moissanite 8.417ct Loose Stone
Sale price¥39,800
Brazilian Limonite in Topaz 6.579ct loose stone (with rainbow)
Sale price¥18,800
Oregon Sunstone 8.256ct rough stone
Sale price¥9,800
Brazilian Dendritic Quartz 6.059ct Loose Stone (Rainbow)
Sale price¥15,800
Brazilian Dendritic Quartz 8.598ct Loose Stone
Sale price¥19,800
Rutilated Quartz (Rutile Quartz) 7.440ct Loose (Sun Rutilated Quartz)
Sale price¥18,800
Rutilated Quartz (Rutilated Quartz) 9.721ct Loose (Sun Rutilated Quartz)
Sale price¥25,800
Hemimorphite from Congo, 6.928 ct loose
Sale price¥29,800
Brazilian Limonite in Blue Topaz 9.314ct Loose Stone
Sale price¥25,800
Brazilian Limonite in Topaz 5.029ct Loose Stone (Rainbow)
Sale price¥15,800
Brazilian Blue Tourmaline in Quartz 9.251ct Loose Stone
Sale price¥39,800
Brazilian Black Garden Quartz 5.722ct Loose Stone
Sale price¥15,800
Green tourmaline 6.069ct loose (marron cut) Japanese-German book
Sale price¥69,800
Sri Lankan Ratotta Topaz 9.926ct Loose (White Topaz)
Sale price¥15,800
Sri Lankan Ratotta Topaz 9.589ct Loose (White Topaz)
Sale price¥12,800
Pink Tourmaline from Brazil 6.782ct Loose
Sale price¥69,800
Afghan Bicolor Beryl 9.490ct Loose Gemstone (with Rainbow Inclusions)
Sale price¥25,800
Colombian emerald 8.90ct rough stone
Sale price¥69,800
Colombian pyrite emerald 8.044ct loose stone
Sale price¥188,000
Rubellite 7.068ct loose Japanese-German book
Sale price¥498,000
9.214ct Loose Kunzite from Afghanistan
Sale price¥45,800
Brazilian Pyrite in Quartz 6.992ct Loose Stone
Sale price¥18,800
Brazilian Medusa Quartz (Paraiba Quartz) 5.809ct loose
Sale price¥6,980
Mexican cantera opal 9.422ct loose
Sale price¥25,800
Mexican cantera opal 7.563ct loose
Sale price¥15,800
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.