Synthetic Blue Sapphire 1.551ct Loose Stone (Synthetic Sapphire)
Sale price¥15,800
Brazilian Dumortierite in Quartz 2.282ct Loose Gemstone
Sale price¥18,800
[Sale on March 22nd at 10 PM] Golden Zircon 0.416ct Loose Stone
Sale price¥9,800
Synthetic rutile 5.1mm/0.877ct loose stone
Sale price¥12,800
South African Sugilite 0.908ct loose stone
Sale price¥14,800
South African Sugilite 0.793ct loose stone
Sale price¥12,800
Ant Hill Garnet from the USA, 4.0mm/0.332ct, loose
Sale price¥11,000
American Anthill Garnet 4.0mm/0.359ct Loose
Sale price¥12,800
Brazilian Dumortierite in Quartz 3.009ct Loose Stone
Sale price¥29,800
Brazilian Dumortierite in Quartz 0.937ct Loose (Faceted)
Sale price¥9,800
Brazilian Dumortierite in Quartz 1.112ct Loose Gemstone (Faceted Cut)
Sale price¥11,000
Brazilian Dumortierite in Quartz 0.690ct Loose Stone (Faceted Cut)
Sale price¥6,980
0.787 ct faceted Dumortierite in Quartz from Brazil
Sale price¥7,980
Brazilian Dumortierite in Quartz 0.880ct Loose Stone (Faceted Cut)
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.867ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.849ct Loose Gemstone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.803ct Loose
Sale price¥9,800
Brazilian Dumortierite in Quartz 1.559ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 1.383ct Loose Gemstone
Sale price¥14,800
Brazilian Dumortierite in Quartz 1.266ct Loose Stone
Sale price¥12,800
Oregon Sunstone from USA 7.1mm/1.308ct Loose Stone
Sale price¥19,800
Oregon Sunstone from the United States, 7.0mm/1.260ct loose stone
Sale price¥12,800
Almandine garnet 2.964ct loose
Sale price¥12,800
Diamond 0.777ct loose (butterfly cut)
Sale price¥69,800
Diamond 0.051ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
[Rouge cut] Almandine garnet 2.661ct loose
Sale price¥12,800
[Rouge cut] Almandine garnet 3.214ct loose
Sale price¥15,800
[Rouge cut] Almandine garnet 4.632ct loose
Sale price¥14,800
Pink diamond 2.2mm/0.043ct loose (FANCY LIGHT PURPLISH PINK, SI2)
Sale price¥39,800
Yellow diamond 0.153ct loose (FANCY INTENSE YELLOW ORANGE, SI1)
Sale price¥35,800
Yellow diamond 0.291ct loose (FANCY INTENSE ORANGY YELLOW, SI2)
Sale price¥59,800
Yellow diamond 0.212ct loose (FANCY DEEP ORANGY YELLOW, VS1)
Sale price¥45,800
Bicolor Zircon 0.468ct Ruth Japanese-German Dictionary
Sale price¥25,800
Sri Lankan Ratotta Topaz 4.170ct Loose (White Topaz)
Sale price¥7,980
Sri Lankan Ratotta Topaz 9.589ct Loose (White Topaz)
Sale price¥12,800
Sri Lankan Ratotta Topaz 9.926ct Loose (White Topaz)
Sale price¥15,800
[Dandelion cut] Synthetic rutile 7.5mm/2.630ct loose
Sale price¥39,800
Paraiba tourmaline from Mozambique 0.246ct loose
Sale price¥35,800
Paraiba tourmaline from Mozambique 0.414ct loose
Sale price¥45,800
Paraiba tourmaline from Mozambique 0.240ct loose
Sale price¥29,800
Colombian trapiche emerald 13.466ct loose
Sale price¥398,000
Pt900 benitoite 0.152ct/diamond 0.58ct ring
Sale price¥198,000
Copper rutilated quartz 1.165ct loose
Sale price¥5,980
Copper rutilated quartz 1.135ct loose
Sale price¥5,980
Strawberry quartz from Kazakhstan 0.815ct loose
Sale price¥5,980
Strawberry quartz from Kazakhstan 1.031ct loose
Sale price¥7,980
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.