Grandidierite from Madagascar 0.178ct loose stone
Sale price¥16,800
Tanzanian bicolor sapphire 0.262ct loose stone
Sale price¥19,800
Brazilian Paraiba tourmaline 0.229ct loose (CuO:0.6%, MnO:1.0%)
Sale price¥35,800
Cornflower Blue Sapphire 4.9mm/0.55ct Loose AIGS
Sale price¥110,000
![[Koshu Precious Stone Cut] Scololite 5.350ct Loose Stone Patch](http://store.karatz.jp/cdn/shop/products/5350ct-167321_92a3d322-8cea-4718-867a-da0305e9cb8e.jpg?v=1745070984&width=1032)
[Koshu Precious Stone Cut] Scololite 5.350ct Loose Stone Patch
Sale price¥39,800
Madagascar Apatite Cat's Eye 2.80ct Loose Stone
Sale price¥29,800
Madagascar Blue Apatite Cat's Eye 1.734ct Loose Stone
Sale price¥15,800
Sri Lankan bicolor sapphire 0.244ct loose stone
Sale price¥12,800
[Sakura Shape] Tanzanian Color Change Sapphire 7.1mm/1.667ct Loose
Sale price¥29,800
[Sakura Shape] Brazilian Green Tourmaline 6.7mm/1.057ct Loose Patch
Sale price¥39,800
Paraiba tourmaline from Brazil 3.1mm/0.151ct loose (CuO:1.1%, MnO:3.8%)
Sale price¥29,800
Particolor Tourmaline 1.121ct Loose Stone (Tricolor)
Sale price¥18,800
Bicolor pink euclase from Brazil 0.310ct loose Japanese-German edition
Sale price¥128,000
Russian demantoid garnet (horsetail recognized) 2mm/0.053ct loose
Sale price¥7,980
Brazilian Paraiba tourmaline in quartz 2.864ct loose
Sale price¥9,800
Brazilian Paraiba tourmaline in quartz 2.801ct loose
Sale price¥9,800
1.710ct loose orange kyanite from Tanzania
Sale price¥9,800
Orange Kyanite from Tanzania 1.070ct loose stone
Sale price¥7,980
Sunstone 0.418ct loose stone
Sale price¥5,980
[Rouge cut] Mozambique almandine garnet 0.954ct loose stone
Sale price¥9,800
[Rouge cut] Mozambique almandine garnet 0.904ct loose stone
Sale price¥9,800
Mexican Cantera Opal 3.176ct Loose
Sale price¥39,800
Mexican Cantera Opal 2.038ct Loose
Sale price¥29,800
Mexican Cantera Opal 3.167ct loose stone (faceted cut)
Sale price¥12,800
Tibetan Andesine 2.020ct Loose Stone
Sale price¥18,800
Brazilian Medusa Quartz (Paraiba Quartz) 0.590ct Loose
Sale price¥9,800
Blue beryl (Macisi beryl) 0.193ct loose stone
Sale price¥8,800
Blue beryl (Macis beryl) 0.166ct loose stone
Sale price¥8,800
Kunzite from Afghanistan 7.741ct loose stone
Sale price¥15,800
Kunzite from Afghanistan 2.938ct loose stone
Sale price¥9,800
Moldavite from former Czechoslovakia 0.141ct loose stone
Sale price¥8,800
Moldavite from former Czechoslovakia 0.051ct loose stone
Sale price¥7,980
Australian Rainbow Lattice Sunstone 0.590ct Loose
Sale price¥12,800
Australian Rainbow Lattice Sunstone 0.876ct Loose Stone
Sale price¥19,800
Andesine Labradorite (commonly known as Rainbow Moonstone) 0.568ct loose
Sale price¥12,800
Pakistani Lazurite (Azurite) 4.1mm/0.318ct Loose Stone
Sale price¥59,800
Madagascar Green Sapphire 0.435ct Loose
Sale price¥13,800
Russian alexandrite 0.093ct loose
Sale price¥39,800
Russian Alexandrite 0.049ct loose stone
Sale price¥29,800
Sri Lankan Zircon 5.8mm/1.255ct 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.
業界発展のための後進育成や事業協力、宝石の国スリランカの子どもたちへの支援活動など、KARATZの取り組みについてご紹介いたします。
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.