Synthetic rutile 5.1mm/0.893ct loose stone
Sale price¥9,800
Brazilian rose amethyst 0.793ct loose stone
Sale price¥15,800
Kunzite from Afghanistan 3.973ct loose stone
Sale price¥12,800
Brazilian bicolor tourmaline 2.047ct loose
Sale price¥29,800
Colombian trapiche emerald (reverse trapiche) 0.170ct loose
Sale price¥12,800
Colombian trapiche emerald (reverse trapiche) 0.093ct loose
Sale price¥7,980
Diamond 0.061ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
Diamond 0.042ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
Diamond 0.039ct loose (trapeze cut, equivalent to VS class)
Sale price¥5,980
Bicolor tourmaline 22.088ct loose
Sale price¥298,000
Blue tourmaline from Afghanistan 4.5mm/0.326ct loose
Sale price¥7,980
Felspar 3.330ct loose from Sri Lanka
Sale price¥8,800
Silky pink sapphire from Madagascar, 1.050ct loose, GIT
Sale price¥128,000
0.200ct loose diamond (G, VVS2, radiant cut)
Sale price¥29,800
Diamond 3.2mm/0.132ct Loose (G, VS-2, EXCELLENT)
Sale price¥29,800
Tanzanian Almandine Garnet 11.0mm/6.787ct Loose Stone
Sale price¥49,800
Tanzanian Almandine Garnet 10mm/6.196ct Loose Stone
Sale price¥29,800
Mozambique Rhodolite Garnet 3.662ct Loose Stone
Sale price¥25,800
Tanzanian Almandine Garnet 6.5mm/1.071ct Loose Stone
Sale price¥11,000
Tanzanian Almandine Garnet 2.897ct Loose Stone
Sale price¥22,800
Tanzanian Almandine Garnet 2.169 ct Loose Stone
Sale price¥21,800
Mozambican Rhodolite Garnet 3.161ct Loose
Sale price¥22,800
Tanzanian Rhodolite Garnet 2.081ct Loose Stone, Japan-Germany Exchange
Sale price¥18,800
Madagascar sphene 1.864ct loose stone
Sale price¥45,800
Tibetan Andesine 2.769ct Loose Stone (Pixel Cut)
Sale price¥9,800
Brazilian Swiss Blue Topaz 13.287ct Loose Stone
Sale price¥18,800
Afghanistan Hackmanite 0.177ct loose stone
Sale price¥14,800
Tanzanian Almandine Garnet 2.972ct Loose Stone
Sale price¥18,800
Tanzanian Rhodolite Garnet 3.486ct Loose Stone
Sale price¥24,800
Tanzanian Almandine Garnet 1.564ct Loose Stone
Sale price¥12,800
Tanzanian Rhodolite Garnet 5.3mm/0.903ct Loose Stone
Sale price¥9,800
[Posted 12544254] Cornel pin 0.228ct loose
Sale price¥18,800
Brazilian bicolor tourmaline 1.764ct loose
Sale price¥32,800
Brazilian bicolor tourmaline 1.565ct loose
Sale price¥19,800
Dendritic quartz 7.997ct loose
Sale price¥6,980
[Colorful] Pt900/Pt850 Auinite 0.08ct pendant (necklace)
Sale price¥79,800
Pt950 Oregon Sunstone 1.24ct Indigo Tourmaline Blue Diamond Ring
Sale price¥128,000
Ice blue sapphire 3.813ct loose
Sale price¥49,800
Russian Demantoid Garnet 0.192ct Loose Stone
Sale price¥79,800
Additional charge: K18WG (base metal) + 10,000 yen
Sale price¥30,000
Additional charge: K18WG (base metal) + 10,000 yen
Sale price¥30,000
Illusion Bicolor Tourmaline 3.202ct Loose Stone
Sale price¥69,800
Mozambique rubellite 0.814ct loose stone
Sale price¥39,800
Afghanistan Green Tourmaline 7.8mm/1.738ct Loose Stone
Sale price¥59,800
Sri Lankan blue sapphire 0.187ct loose stone
Sale price¥29,800
Tanzanian Sunstone 0.980ct Loose Stone
Sale price¥9,800
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.