Prehnite 0.818ct loose stone
Sale price¥3,980
Synthetic Moissanite 0.491ct loose stone
Sale price¥4,980
Cambodian blue zircon 4.203ct loose
Sale price¥39,800
Green opal 15.950ct loose
Sale price¥29,800
Colombian Euclase from Colombia 4.869ct loose
Sale price¥55,800
Tanzanite 2.726ct loose
Sale price¥110,000
Color change Andesine 2.311ct loose
Sale price¥25,800
South African green diamond rough (makeable) 0.298ct loose
Sale price¥69,800
Cantera opal 14.581ct loose
Sale price¥22,800
Bicolor Zoisite 1.785ct loose
Sale price¥49,800
Opal 21.584ct loose Japanese and German
Sale price¥8,800
Bicolor sapphire 0.853ct loose stone
Sale price¥9,800
Morganite 1.135ct loose
Sale price¥5,980
Synthetic moissanite 0.245ct loose (shield cut)
Sale price¥6,980
Tanzanite 2.418ct loose
Sale price¥55,800
Hemimorphite 18.750ct loose
Sale price¥39,800
Montana Sapphire 1.9mm/0.033ct loose
Sale price¥4,980
Dioptase from Namibia 3.2mm/0.123ct loose
Sale price¥59,800
Andalusite from Sri Lanka 0.408ct loose
Sale price¥3,980
Andalusite from Sri Lanka 0.361ct loose
Sale price¥3,980
Montana Sapphire 2.8mm/0.098ct Loose Stone (Yellow)
Sale price¥6,980
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
Colombian Euclase 1.365ct rough stone
Sale price¥29,800
Mexican fire agate 33.195ct loose
Sale price¥39,800
Black opal 2.293ct loose
Sale price¥98,000
Bicolor apatite 15.507ct loose
Sale price¥98,000
Synthetic Moissanite 13mm/8.154ct Loose Stone
Sale price¥39,800
Synthetic rutile 6.5mm/1.233ct loose stone
Sale price¥12,800
Brazilian beryl 105.928ct raw stone
Sale price¥18,800
Myanmar pink spinel 0.325ct loose stone
Sale price¥6,980
Myanmar Purple Spinel 0.312ct Loose Stone
Sale price¥3,980
Lavender spinel 1.285ct loose
Sale price¥39,800
Pakistani Veirinite 0.190ct Loose Stone with Certificate of Authenticity
Sale price¥45,800
Mexican Hyalite Opal 1.587ct Loose
Sale price¥9,800
Mexican Cantera Opal 4.456ct Loose
Sale price¥39,800
0.324ct loose pink sapphire from Madagascar
Sale price¥12,800
Madagascar sapphire 0.298ct loose stone
Sale price¥12,800
Madagascar sapphire 0.503ct loose stone
Sale price¥15,800
Brazilian Aquamarine 0.287ct Loose Stone
Sale price¥6,980
Brazilian Aquamarine 0.223ct Loose Stone
Sale price¥8,800
Brazilian Aquamarine 0.238ct Loose Stone (Princess Cut)
Sale price¥5,980
Brazilian Aquamarine 0.255ct Loose Stone
Sale price¥6,980
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.