Australian black opal 0.404ct loose stone
Sale price¥9,800
Russian demantoid garnet (horsetail recognized) 2mm/0.055ct loose
Sale price¥6,980
Pakistani Axinite (Blue Tint) 0.300ct Loose
Sale price¥7,980
Tibetan Andesine 5.2mm/0.453ct Loose Stone
Sale price¥4,980
Myanmar Musgravite 0.351ct Loose Stone Japan-Germany
Sale price¥188,000
American Red Beryl 0.104ct Loose
Sale price¥15,800
Brazilian Alexandrite 0.097ct loose stone
Sale price¥18,800
Montana Sapphire 4mm/0.330ct Loose (Yellow Sapphire)
Sale price¥7,980
Ruby 0.258ct loose
Sale price¥18,800
Kasharai Amethyst 0.430ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.350ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.474ct Loose
Sale price¥15,800
American Red Beryl 0.254ct Loose
Sale price¥59,800
American Red Beryl 0.260ct Loose
Sale price¥69,800
Brazilian unheated pink imperial topaz (sherry pink) 0.254ct loose stone
Sale price¥14,800
Moldavite from former Czechoslovakia 0.077ct loose stone
Sale price¥6,980
Sri Lankan bicolor sapphire 0.484ct loose stone
Sale price¥12,800
Zimbabwe bicolor euclase 0.205ct loose stone
Sale price¥98,000
Kenyan gold sheen sapphire 2.3mm/0.079ct loose
Sale price¥6,980
Kenyan Gold Sheen Sapphire 2.2mm/0.080ct Loose
Sale price¥8,800
Nigerian Cobalt Garnite 0.216ct Loose Stone, Japan-Germany Exchange
Sale price¥45,800
Paraiba tourmaline from Brazil 0.217ct loose (CuO:1.5%, MnO:0.5%)
Sale price¥39,800
Kenyan gold sheen sapphire 2.4mm/0.086ct loose
Sale price¥9,800
Kenyan Gold Sheen Sapphire 2.4mm/0.092ct Loose Stone
Sale price¥8,800
Myanmar Musgravite 0.214ct Loose Stone Nikko Kan
Sale price¥258,000
Sri Lankan bicolor sapphire 0.304ct loose stone
Sale price¥14,800
South African diamond rough stone 0.330ct
Sale price¥5,980
Sri Lankan Blue Sapphire 4.2mm/0.333ct Loose Stone
Sale price¥12,800
Mozambique Almandine Garnet 0.477ct Loose Stone
Sale price¥8,800
Colombian emerald cat's eye 0.421ct loose stone
Sale price¥12,800
Mexican Opal (Faceted Cut) 0.496ct Loose
Sale price¥9,800
Blue beryl (Macis beryl) 0.250ct loose stone
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.407ct Loose
Sale price¥15,800
Sri Lankan Yellow Sapphire 0.250ct Loose
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.223ct Loose
Sale price¥12,800
Round Diamond 0.389ct Loose (Cabochon Cut)
Sale price¥39,800
Sri Lankan Blue Sapphire 4.3mm/0.371ct Loose Stone
Sale price¥12,800
Madagascar pink sapphire 0.275ct loose stone
Sale price¥12,800
Madagascar Blue Sapphire (Ice Blue) 0.263ct Loose
Sale price¥12,800
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
South African diamond rough (sawable) 0.103ct rough (with trigon)
Sale price¥24,800
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.