Madeira citrine 0.170ct loose
Sale price¥5,980
Montana Sapphire 0.397ct loose (bicolor sapphire)
Sale price¥12,800
Green tourmaline 1.687ct loose
Sale price¥12,800
Pink tourmaline 0.669ct loose
Sale price¥8,800
Bicolor Tourmaline 9.0mm/2.507ct Loose
Sale price¥29,800
Green tourmaline 3.334ct loose
Sale price¥25,800
Mexican Hyalite Opal 7.5mm/1.221ct Loose (Faceted Cut)
Sale price¥12,800
Green tourmaline 6.069ct loose (marron cut) Japanese-German book
Sale price¥69,800
Strawberry quartz from Kazakhstan 0.977ct loose
Sale price¥5,980
Strawberry quartz from Kazakhstan 0.803ct loose
Sale price¥5,980
Strawberry quartz from Kazakhstan 1.613ct loose
Sale price¥9,800
Strawberry quartz from Kazakhstan 0.773ct loose
Sale price¥5,980
Strawberry quartz from Kazakhstan 1.031ct loose
Sale price¥7,980
Strawberry quartz from Kazakhstan 0.815ct loose
Sale price¥5,980
Copper rutilated quartz 1.135ct loose
Sale price¥5,980
Copper rutilated quartz 1.165ct loose
Sale price¥5,980
Colombian trapiche emerald 13.466ct loose
Sale price¥398,000
Paraiba tourmaline from Mozambique 0.240ct loose
Sale price¥29,800
Paraiba tourmaline from Mozambique 0.414ct loose
Sale price¥45,800
Paraiba tourmaline from Mozambique 0.246ct loose
Sale price¥35,800
[Dandelion cut] Synthetic rutile 7.5mm/2.630ct loose
Sale price¥39,800
Sri Lankan Ratotta Topaz 9.926ct Loose (White Topaz)
Sale price¥15,800
Sri Lankan Ratotta Topaz 9.589ct Loose (White Topaz)
Sale price¥12,800
Sri Lankan Ratotta Topaz 4.170ct Loose (White Topaz)
Sale price¥7,980
Bicolor Zircon 0.468ct Ruth Japanese-German Dictionary
Sale price¥25,800
Yellow diamond 0.212ct loose (FANCY DEEP ORANGY YELLOW, VS1)
Sale price¥45,800
Yellow diamond 0.291ct loose (FANCY INTENSE ORANGY YELLOW, SI2)
Sale price¥59,800
Yellow diamond 0.153ct loose (FANCY INTENSE YELLOW ORANGE, SI1)
Sale price¥35,800
Yellow diamond 0.188ct loose (FANCY INTENSE YELLOW, VS1)
Sale price¥47,800
Pink diamond 2.2mm/0.043ct loose (FANCY LIGHT PURPLISH PINK, SI2)
Sale price¥39,800
[Rouge cut] Almandine garnet 4.632ct loose
Sale price¥14,800
[Rouge cut] Almandine garnet 3.214ct loose
Sale price¥15,800
[Rouge cut] Almandine garnet 2.661ct loose
Sale price¥12,800
Diamond 0.051ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
Diamond 0.777ct loose (butterfly cut)
Sale price¥69,800
Almandine garnet 2.964ct loose
Sale price¥12,800
Colombian oil-free emerald 0.220ct loose GIA
Sale price¥248,000
Brazilian Paraiba tourmaline 0.065ct loose (CuO:2.0%, MnO:2.6%)
Sale price¥22,800
Sri Lankan Chrysoberyl Cat's Eye 1.340ct Loose Stone
Sale price¥6,980
Colombian pyrite emerald 8.044ct loose stone
Sale price¥188,000
Tourmaline 0.731ct loose
Sale price¥5,980
Mexican Fire Opal 0.277ct Loose (Faceted Cut)
Sale price¥5,980
Mexican Fire Opal 0.472ct Loose (Star Cut, Faceted Cut)
Sale price¥8,800
Mexican Fire Opal 0.564ct Loose (Faceted Cut)
Sale price¥12,800
Colombian trapiche emerald (reverse trapiche) 0.457ct rough stone
Sale price¥25,800
Cambodian blue zircon (Ratanakiri blue) 0.453ct loose
Sale price¥6,980
Pakistani Oil in Quartz 0.651ct Loose Stone
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.