Brazilian copper rutilated quartz 1.376ct loose stone
Sale price¥9,800
Brazilian copper rutilated quartz 2.073ct loose stone
Sale price¥9,800
Brazilian copper rutilated quartz 1.643ct loose stone
Sale price¥12,800
Brazilian copper rutilated quartz 1.507ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 1.354ct loose stone
Sale price¥9,800
Pt900 Tanzanian Malaya Garnet 2.01ct Diamond Pendant (Necklace)
Sale price¥59,800
Pt900 Russian Demantoid Garnet (Horsetail) 0.30ct and Diamond 0.30ct Ring
Sale price¥128,000
Diamond (cabochon cut) 0.233ct loose
Sale price¥39,800
Mexican Hyalite Opal 6.1mm/0.810ct Loose
Sale price¥15,800
Mexican Hyalite Opal 6.0mm/0.676ct Loose Stone
Sale price¥15,800
Mexican Hyalite Opal 5.0mm/0.449ct Loose Stone
Sale price¥9,800
Australian black opal 4.528ct loose
Sale price¥39,800
Australian black opal 2.591ct loose stone
Sale price¥39,800
Australian black opal 1.399ct loose
Sale price¥22,800
Australian black opal 0.599ct loose stone
Sale price¥18,800
Australian black opal 0.693ct loose stone
Sale price¥8,800
Australian black opal 0.327ct loose stone
Sale price¥7,980
Bicolor sapphire 0.143ct loose
Sale price¥8,800
Bicolor sapphire 0.481ct loose
Sale price¥25,800
Mexican Fire Opal 1.135ct Loose
Sale price¥9,800
Purple sapphire 0.419ct loose stone
Sale price¥15,800
Pt900 Kashmir unheated sapphire 1.14ct / diamond 0.70ct ring GIA
Sale price¥1,580,000
Sri Lankan Silky Sapphire 1.166ct Loose
Sale price¥12,800
Silky sapphire from Sri Lanka 0.975ct loose
Sale price¥8,800
Blue sapphire 3.9mm/0.279ct loose stone
Sale price¥9,800
Blue sapphire 3.9mm/0.260ct loose stone
Sale price¥8,800
Tanzanian Purple Sapphire 0.681ct Loose Stone (Color Shift)
Sale price¥19,800
Madagascar pink sapphire 0.527ct loose stone
Sale price¥18,800
Madagascar pink sapphire 0.335ct loose stone
Sale price¥14,800
Madagascar Purple Sapphire 0.440ct Loose
Sale price¥18,800
Madagascar Purple Sapphire 0.429ct Loose
Sale price¥12,800
Madagascar Purple Sapphire 0.523ct Loose
Sale price¥15,800
Mexican Cantera Opal 10.927ct Loose
Sale price¥18,800
Mexican Cantera Opal 19.732ct Loose
Sale price¥24,800
Sri Lankan Yellow Sapphire 0.221ct Loose
Sale price¥9,800
Synthetic Opal (Synthetic Black Opal) 1.467ct Loose
Sale price¥12,800
Synthetic Opal (Synthetic Black Opal) 10.910ct Loose
Sale price¥69,800
Synthetic Opal (Synthetic Black Opal) 1.532ct Loose
Sale price¥15,800
Madagascar Purple Sapphire 0.433ct Loose Stone
Sale price¥14,800
Mexican Opal (Faceted Cut) 1.052ct Loose
Sale price¥19,800
Mexican Opal (Faceted Cut) 0.640ct Loose
Sale price¥14,800
Mexican Opal (Faceted Cut) 0.550ct Loose
Sale price¥25,800
Mexican Fire Opal (Faceted) 6.1mm/0.450ct Loose
Sale price¥12,800
Mexican Fire Opal (Faceted Cut) 0.352ct Loose
Sale price¥9,800
Mexican Fire Opal 0.921ct Loose
Sale price¥14,800
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.