Pink sapphire from Greenland 4.3mm/0.465ct loose with certificate
Sale price¥6,980
Ice ruby (pink sapphire) from Greenland 0.416ct loose with certificate
Sale price¥18,800
Pink sapphire from Greenland 0.754ct loose with certificate
Sale price¥25,800
Pink sapphire from Greenland 0.336ct loose with certificate
Sale price¥9,800
Ruby from Greenland 0.268ct loose with certificate
Sale price¥18,800
Yellow sapphire from Sri Lanka 6mm/0.816ct loose
Sale price¥18,800
Yellow sapphire from Sri Lanka 6mm/0.962ct loose
Sale price¥18,800
K18 bicolor sapphire 0.129ct/blue sapphire ring
Sale price¥69,800
Mexican cantera opal 34.760ct loose
Sale price¥39,800
Black opal 2.293ct loose
Sale price¥98,000
[12541081 published] Emerald 9.380ct rough stone
Sale price¥4,980
[Posted 12541074] Emerald 77.265ct rough stone
Sale price¥6,980
[Posted 12541071] Emerald 162.375ct rough stone
Sale price¥9,800
[Posted 12540116] Ethiopian opal 136.601ct rough stone
Sale price¥29,800
Colombian trapiche emerald (reverse trapiche) 0.107ct rough stone
Sale price¥9,800
Colombian emerald cat's eye 0.834ct loose
Sale price¥39,800
Mexican Hyalite Opal 1.587ct Loose
Sale price¥9,800
Mexican Cantera Opal 4.456ct Loose
Sale price¥39,800
Opal 426.985ct rough stone
Sale price¥29,800
[On Sale at 10 PM on August 9th] Madagascar Pink Sapphire 0.324ct Loose
Sale price¥12,800
[On Sale at 10 PM on August 13th] Madagascar Sapphire 0.298ct Loose
Sale price¥12,800
[On sale at 10pm on August 14th] Madagascar sapphire 0.569ct loose
Sale price¥18,800
[On Sale at 10 PM on August 9th] Madagascar Sapphire 0.503ct Loose
Sale price¥15,800
[On Sale at 10 PM on August 2nd] Madagascar Sapphire 0.344ct Loose
Sale price¥12,800
[On Sale at 10 PM on August 2nd] Madagascar Sapphire 0.516ct Loose
Sale price¥12,800
[On sale at 10pm on August 15th] Sri Lankan Star Sapphire 2.062ct Loose
Sale price¥12,800
Mexican cantera opal 8.454ct loose
Sale price¥3,980
Colombian oil-free emerald 0.535ct loose Japanese-German edition
Sale price¥248,000
Colombian trapiche emerald (reverse trapiche) 0.101ct rough stone
Sale price¥12,800
Mexican fire opal 6mm/0.698ct loose (rose cut)
Sale price¥14,800
American Benitoite 0.100ct Loose Stone (Emerald Cut)
Sale price¥32,800
Mexican cantera opal 12.401ct loose
Sale price¥8,800
0.400ct Madagascar Pink Sapphire Loose (Heart Shape)
Sale price¥19,800
Diamond (cabochon cut) 0.196ct loose
Sale price¥29,800
Mexican cantera opal 14.740ct loose
Sale price¥14,800
Australian boulder opal 1.026ct loose
Sale price¥3,980
Australian boulder opal 14.860ct loose
Sale price¥18,800
Ruby from Greenland 0.421ct loose with certificate
Sale price¥18,800
Mexican Fire Opal 0.353ct Loose
Sale price¥4,980
Mexican cantera opal 32.560ct loose
Sale price¥29,800
Colombian Trapiche Emerald (Reverse Trapiche) 4.3mm/0.329ct Rough Stone
Sale price¥29,800
[Cat cut] Bankacha sapphire 0.812ct 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.