American Red Beryl 0.104ct Loose
Sale price¥15,800
Australian black opal 0.544ct loose stone
Sale price¥18,800
Brazilian Sky Blue Topaz (untreated) 2.560ct loose stone
Sale price¥12,800
Tanzania Peristerite 0.911ct Loose Stone (Royal Blue Moonstone)
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 Paraiba Tourmaline in Quartz 6.0mm/0.794ct Loose Stone
Sale price¥15,800
Sri Lankan bicolor sapphire 0.484ct loose stone
Sale price¥12,800
Paraiba tourmaline from Brazil 0.217ct loose (CuO:1.5%, MnO:0.5%)
Sale price¥39,800
Madagascar Bicolor Sapphire 0.626ct Loose
Sale price¥29,800
Australian Boulder Opal 41.770ct Loose
Sale price¥29,800
Australian Boulder Opal 15.020ct Loose
Sale price¥18,800
Australian Boulder Opal 12.220ct Loose
Sale price¥12,800
Mexican Fire Opal 1.330ct Loose (Contralus Opal)
Sale price¥19,800
Mexican Fire Opal 1.610ct Loose (Contralus Opal)
Sale price¥19,800
Sri Lankan bicolor sapphire 0.304ct loose stone
Sale price¥14,800
Brazilian Bicolor Tourmaline 4.554ct Ruth Japanese-German Edition
Sale price¥298,000
Australian Prehnite 6.0mm/1.004ct loose stone (rose cut)
Sale price¥8,800
Australian Prehnite 6.0mm/0.993ct loose stone (rose cut)
Sale price¥8,800
Mexican Fire Opal (Faceted Cut) 0.608ct Loose
Sale price¥12,800
Blue beryl (Macis beryl) 0.250ct loose stone
Sale price¥12,800
Brazilian Paraiba Tourmaline in Quartz 1.054ct Loose Stone
Sale price¥18,800
Brazilian Paraiba Tourmaline in Quartz 7.9mm/1.133ct Loose Stone
Sale price¥22,800
Brazilian Paraiba Tourmaline in Quartz 1.530ct Loose Stone
Sale price¥29,800
Brazilian Paraiba Tourmaline in Quartz 3.046ct loose stone
Sale price¥45,800
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
Afghanistan Bicolor Tourmaline 1.653ct Loose Stone
Sale price¥49,800
Brazilian bicolor tourmaline 7.445ct loose stone
Sale price¥69,800
American Red Beryl 0.200ct Loose (Heart Shape) Nikkeikan
Sale price¥35,800
American Red Beryl 0.252ct Loose
Sale price¥39,800
Madagascar Bicolor Sapphire 0.298ct Loose (Padparadscha Color)
Sale price¥35,800
Brazilian Bicolor Tourmaline Cat's Eye 9.5mm/4.730ct Loose Stone
Sale price¥18,800
Synthetic Black Opal 5.013ct Loose
Sale price¥59,800
![[On sale from 10pm on 5/11] Madagascar bicolor sapphire 0.263ct loose stone (Padparadscha color)](http://store.karatz.jp/cdn/shop/files/P6290214_0a2f3276-e024-4679-9d97-b36ae25068c8.jpg?v=1749163100&width=4000)
Afghanistan Bicolor Beryl 9.100ct Loose Stone
Sale price¥34,800
Afghanistan Bicolor Beryl 9.490ct Loose Stone
Sale price¥29,800
American Benitoite 3.5mm/0.192ct Loose Stone (Contains Minerals)
Sale price¥69,800
Brazilian bicolor tourmaline cat's eye 2.640ct loose stone
Sale price¥12,800
Australian Boulder Opal 6.160ct Loose
Sale price¥18,800
Australian Boulder Opal 4.980ct Loose
Sale price¥19,800
![[Koshu Precious Stone Cutting] Fluorite in Quartz 6.420ct Loose Stone [Collaboration] Patch](http://store.karatz.jp/cdn/shop/files/collage_3269a09e-f7e8-4625-a34c-9b27a3584d4b.png?v=1746103198&width=2000)
Mexican Fire Opal 1.320ct Loose
Sale price¥13,800
Brazilian Petalite 2.164ct loose stone
Sale price¥11,000
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.