Russian Diamond Rough (Sawable) 0.103ct Loose (Trigon)
Sale price¥25,800
Tanzanian Rhodolite Garnet 0.448ct Loose Stone
Sale price¥6,980
Tanzanian Rhodolite Garnet 0.810ct Loose Stone
Sale price¥9,800
Tanzanian Kornerupine Cat's Eye 1.608ct Loose Stone
Sale price¥6,980
American Herkimer Diamond (Rock Crystal) 5.5mm/0.528ct Loose
Sale price¥8,800
Goshenite 5.7mm/0.572ct loose stone
Sale price¥5,980
Indian Moonstone 8mm/1.879ct Loose
Sale price¥6,980
Brazilian Lazulite 0.067ct Loose Gemstone with Certificate
Sale price¥49,800
Brazilian Lazulite 0.061ct Loose Gemstone with Certificate
Sale price¥45,800
Ceylon ice blue sapphire, 1.134 ct, loose, with gemological report
Sale price¥45,800
Afghan Green Hauyne 3.6mm/0.135ct Loose with Certification
Sale price¥35,800
0.323ct loose pezzottaite from Madagascar
Sale price¥49,800
Brazilian Silky Alexandrite 0.265ct Loose Stone with Certification
Sale price¥45,800
1.841ct Loose Tanzanian Zircon with Certificate of Authenticity
Sale price¥18,800
Tanzanian Orange Zircon 1.305ct Loose Stone with Appraisal Report
Sale price¥13,800
Zimbabwean Blue Apatite (UV Type) 0.650ct Loose
Sale price¥9,800
Bolivian Ametrine 36.887ct loose stone
Sale price¥79,800
YAG (Yttrium Aluminum Garnet) 4.9mm/0.574ct loose stone
Sale price¥8,800
Synthetic rutile 0.942ct loose stone
Sale price¥14,800
Mexican Fire Opal 0.718ct Loose
Sale price¥9,800
Mexican Fire Opal 0.593ct Loose (Faceted Cut)
Sale price¥9,800
Nigerian bicolor tourmaline 0.379ct loose stone
Sale price¥6,980
Tanzanian green sapphire 0.303ct loose stone
Sale price¥8,800
Sri Lankan cobalt spinel 0.281ct loose stone
Sale price¥55,800
Tanzania Purple Zoisite 0.863ct Rough Stone
Sale price¥7,980
Colombian mint color emerald 0.297ct loose stone
Sale price¥8,800
[Updated 12552163] Benitoite 0.099ct loose stone
Sale price¥29,800
[12550887] Paraiba Tourmaline from Mozambique 0.784ct loose stone
Sale price¥128,000
Pakistani Oil in Quartz 0.438ct Loose Stone
Sale price¥6,980
Madagascar sapphire 0.448ct loose stone
Sale price¥15,800
[Calafuri] K18 Blue Sapphire and Diamond Ring Appraisal Report
Sale price¥128,000
Zimbabwe Euclase 0.067ct Loose Gemological Report
Sale price¥15,800
American Ceylanite 2.666ct Loose Stone with Certification
Sale price¥15,800
Sri Lankan Silky Sapphire 5.1mm/0.488ct Rose Cut Loose Gemstone
Sale price¥7,980
Jeremejevite from Namibia 0.095ct Loose Stone with Certification
Sale price¥24,800
Jeremejevite from Namibia 0.089ct Loose Stone with Certificate
Sale price¥25,800
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.