Silky diamond 2.7mm/0.086ct loose
Sale price¥9,800
Zambian Emerald 3.7mm/0.215ct Loose Stone (Silky Emerald)
Sale price¥9,800
Sunstone (Illusion Sunstone) 1.934ct Loose
Sale price¥8,800
Congo Bicolor Tourmaline 3.429ct Loose
Sale price¥128,000
Colombian mica in emerald 1.940ct loose
Sale price¥49,800
Colombian mint color emerald 0.155ct loose stone
Sale price¥7,980
Colombian mint color emerald 0.297ct loose stone
Sale price¥9,800
Bicolor tanzanite 0.479ct loose
Sale price¥18,800
Colombian mint color emerald 0.136ct loose stone
Sale price¥6,980
Colombian pyrite-mica emerald 3.208ct loose stone
Sale price¥228,000
Colombian oil-free emerald 0.510ct loose GIA
Sale price¥598,000
Tanzanite from Tanzania 2.777ct loose stone
Sale price¥98,000
Colombian pyrite in emerald 7.836ct loose
Sale price¥398,000
Colombian oil-free emerald 0.310ct loose stone
Sale price¥298,000
Colombian oil-free emerald 0.220ct loose GIA
Sale price¥248,000
Colombian Trapiche emerald 0.418ct rough stone
Sale price¥39,800
Colombian trapiche emerald 13.466ct loose
Sale price¥398,000
Colombian emerald cat's eye 0.190ct loose
Sale price¥15,800
Colombian emerald 3.3mm/0.131ct loose stone
Sale price¥25,800
Colombian emerald 3.1mm/0.093ct loose stone
Sale price¥22,800
Colombian emerald 1.435ct rough stone
Sale price¥18,800
0.451 ct loose Colombian emerald
Sale price¥39,800
Colombian emerald 0.176ct loose stone
Sale price¥59,800
Colombian emerald 0.222ct loose stone
Sale price¥59,800
Colombian emerald 0.159ct loose stone
Sale price¥47,800
Cornflower blue sapphire 0.490ct loose stone
Sale price¥98,000
[Sale on March 22nd at 10 PM] Golden Zircon 0.416ct Loose Stone
Sale price¥9,800
Colombian emerald 0.203ct loose stone with certificate
Sale price¥98,000
Kenyan Tsavorite 0.806ct Loose Stone
Sale price¥39,800
Kenyan Gold Sheen Sapphire 4mm/0.438ct Loose
Sale price¥55,800
Chrysoberyl cat's eye 1.497ct loose
Sale price¥22,800
Gray Diamond 0.107ct Loose (FANCY GRAY, I-1)
Sale price¥39,800
Green tourmaline 1.190ct loose stone
Sale price¥98,000
Cassiterite 4.2mm/0.676ct Loose Stone with Certificate of Authenticity
Sale price¥16,800
Cambodian Blue Zircon (Ratanakiri Blue) 6.771ct Loose
Sale price¥168,000
Gray Diamond 0.158ct Loose (FANCY DARK GRAY, I-1)
Sale price¥45,800
Cambodian Blue Zircon (Ratanakiri Blue) 1.205ct Loose Stone
Sale price¥18,800
Cambodian Blue Zircon (Ratanakiri Blue) 2.607ct Loose Stone
Sale price¥59,800
Cambodian blue zircon 4.203ct loose
Sale price¥39,800
Cambodian blue zircon, 7.0mm/1.962ct loose
Sale price¥39,800
Blue zircon 3.283ct loose
Sale price¥75,800
Cambodian Blue Zircon 1.606ct Loose
Sale price¥18,800
Blue zircon 0.397ct loose stone
Sale price¥6,980
Cambodian Blue Zircon 0.205ct Loose
Sale price¥3,980
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.