Zimbabwean sphene 0.224ct loose stone
Sale price¥6,980
Benitoite 0.091ct loose
Sale price¥22,800
Red beryl 0.096ct loose
Sale price¥22,800
Synthetic Moissanite 0.714ct loose stone
Sale price¥6,980
Prehnite 0.818ct loose stone
Sale price¥3,980
Synthetic Moissanite 0.358ct loose stone
Sale price¥3,980
Synthetic Moissanite 0.491ct loose stone
Sale price¥4,980
Paraiba tourmaline from Brazil 0.055ct loose (CuO:1.5%,MnO:3.2%)
Sale price¥39,800
Paraiba tourmaline from Brazil 0.066ct loose (CuO:1.7%,Mn0:2.1%)
Sale price¥29,800
Madeira Citrine 6mm/0.914ct loose
Sale price¥8,800
South African green diamond rough (makeable) 0.298ct loose
Sale price¥69,800
Paraiba tourmaline from Brazil 0.252ct loose (CuO:0.9%, MnO:2.0%)
Sale price¥29,800
Bicolor sapphire 0.853ct loose stone
Sale price¥9,800
Synthetic moissanite 0.245ct loose (shield cut)
Sale price¥6,980
Paraiba tourmaline from Brazil 0.265ct loose (CuO:0.7%, MnO:3.0%)
Sale price¥29,800
Montana Sapphire 1.9mm/0.033ct loose
Sale price¥4,980
Labradorite 6mm/0.741ct loose (rose cut)
Sale price¥3,980
Brazilian rainbow scapolite 3mm/0.133ct loose (rose cut)
Sale price¥3,980
Andalusite from Sri Lanka 0.408ct loose
Sale price¥3,980
Andalusite from Sri Lanka 0.361ct loose
Sale price¥3,980
Brazilian Paraiba tourmaline 0.229ct loose (CuO:0.8%, MnO:2.2%)
Sale price¥39,800
Montana Sapphire 2.8mm/0.098ct Loose Stone (Yellow)
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
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
Cornel pin cat's eye 0.657ct loose
Sale price¥3,980
Myanmar pink spinel 0.325ct loose stone
Sale price¥6,980
Afghanistan Hackmanite 0.761ct loose stone (bicolor)
Sale price¥39,800
Myanmar Purple Spinel 0.312ct Loose Stone
Sale price¥3,980
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
Pakistani Veirinite 0.190ct Loose Stone with Certificate of Authenticity
Sale price¥45,800
0.327ct loose yellow sapphire from Madagascar
Sale price¥12,800
0.324ct loose pink sapphire from Madagascar
Sale price¥12,800
Madagascar sapphire 0.298ct loose stone
Sale price¥12,800
Madagascar sapphire 0.289ct loose stone
Sale price¥12,800
Madagascar sapphire 0.503ct loose stone
Sale price¥15,800
Brazilian Aquamarine 0.342ct Loose Stone
Sale price¥5,980
Brazilian Aquamarine 0.287ct Loose Stone
Sale price¥6,980
Brazilian Aquamarine 0.223ct Loose Stone
Sale price¥8,800
Brazilian Aquamarine 0.419ct Loose Stone (Princess Cut)
Sale price¥8,800
Brazilian Aquamarine 0.238ct Loose Stone (Princess Cut)
Sale price¥5,980
Brazilian Aquamarine 0.494ct Loose Stone
Sale price¥8,800
Brazilian Aquamarine 0.255ct Loose Stone
Sale price¥6,980
Brazilian Aquamarine 0.463ct Loose Stone
Sale price¥6,980
Brazilian Aquamarine 0.239ct Loose Stone (Princess Cut)
Sale price¥8,800
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.