Pakistan Ruby in Quartz 1.429ct Loose Stone
Sale price¥12,800
Brazilian bicolor tourmaline 0.582ct loose stone
Sale price¥6,980
Australian Green Opal 4.990ct Loose
Sale price¥9,800
Brazilian Quartz 13.991ct Loose Patch
Sale price¥9,800
Brazilian Paraiba Tourmaline in Quartz 1.146ct Loose Stone
Sale price¥29,800
Brazilian Paraiba Tourmaline in Quartz 2.674ct loose stone
Sale price¥54,800
Tanzanian Rhodolite Garnet 10.608ct Loose Stone
Sale price¥98,000
Australian black opal 0.386ct loose stone
Sale price¥39,800
Indian Moonstone 8.2mm/1.823ct Loose
Sale price¥14,800
Indian Moonstone 6.2mm/0.749ct Loose
Sale price¥7,980
Blue Beryl (Macisi Beryl) 3.5mm/0.158ct loose stone
Sale price¥8,800
Blue beryl (Macis beryl) 3.5mm/0.152ct loose stone
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.543ct Loose
Sale price¥29,800
Mexican Fire Opal 1.341ct Loose
Sale price¥39,800
Fluorite rough stone from Namibia 5.0 x 6.3 x 2.0cm
Sale price¥12,800
![Tanzanian Dravite rough stone 24.5 x 10.5 x 7.7 mm [Gemstone Encyclopedia]](http://store.karatz.jp/cdn/shop/files/P1010325_2e629dc7-2020-4b62-a17c-029286482b85.jpg?v=1731062614&width=4000)
Tanzanian Yellow Beryl 1.750ct Loose Stone
Sale price¥15,800
[Rouge cut] Almandine garnet 2.476ct loose stone
Sale price¥9,800
[Sakura Shape] Mexican Opal 2.551ct Loose Patch
Sale price¥59,800
Colombian emerald 3.5mm/0.150ct loose stone
Sale price¥22,800
Brazilian rutilated quartz (rutile quartz) 12mm/6.709ct loose stone
Sale price¥9,800
Brazilian rutilated quartz (rutile quartz) 12mm/7.140ct loose stone
Sale price¥9,800
Mexican Cantera Opal 7.460ct Loose
Sale price¥29,800
Mexican Fire Opal 8.0mm/1.270ct Loose
Sale price¥29,800
Brazilian bicolor tourmaline 1.020ct loose stone
Sale price¥15,800
Hackmanite from Afghanistan, 27.410ct rough stone
Sale price¥9,800
Brazilian bicolor tourmaline 1.020ct loose stone
Sale price¥19,800
Bicolor sapphire 2.040ct loose stone
Sale price¥59,800
Sri Lankan bicolor sapphire 0.260ct loose stone
Sale price¥12,800
Mexican Opal 8.8mm/1.640ct Loose
Sale price¥29,800
Colombian oil-free emerald 0.220ct loose GIA
Sale price¥248,000
Kenyan Gold Sheen Sapphire 3.5mm/0.273ct Loose Stone
Sale price¥22,800
Tanzanian bicolor tanzanite 1.644ct rough and loose stone set of 2
Sale price¥8,800
Brazilian bicolor tourmaline 1.660ct loose stone
Sale price¥29,800
Italian Leucite 0.321ct loose stone (play of color)
Sale price¥11,800
Italian Leucite 0.287ct loose stone (play of color)
Sale price¥9,800
Sri Lankan pink star sapphire 1.021ct loose stone
Sale price¥11,000
Tibetan bicolor andesine 1.431ct loose stone
Sale price¥12,800
Mexican Opal 1.639ct Loose (Contralus Opal)
Sale price¥29,800
Diamond 3.0mm/0.123ct loose stone (D, VS2, octagonal cut)
Sale price¥28,800
Brazilian Paraiba Tourmaline 0.405ct loose stone (CuO2.7% CuO2.2%) GIA
Sale price¥198,000
Namibian Jeremejevite 0.194ct loose stone by Nikkei
Sale price¥15,800
Sri Lankan Purple Spinel 1.638ct Loose Stone, Japan-Germany Exchange
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.