Cambodian Blue Zircon (Ratanakiri Blue) 2.232ct Loose Stone
Sale price¥79,800
Cambodian Blue Zircon (Ratanakiri Blue) 1.513ct Loose Stone
Sale price¥59,800
Tanzanian Dragon Garnet 0.850ct Loose Stone
Sale price¥22,800
Tanzanian Dragon Garnet 0.818ct Loose Stone
Sale price¥22,800
Tanzanian Dragon Garnet 5.0mm/0.767ct Loose Stone
Sale price¥19,800
Tanzanian Dragon Garnet 1.015ct Loose Stone
Sale price¥29,800
Zimbabwean sphene 0.987ct loose stone
Sale price¥19,800
Zimbabwean sphene 0.978ct loose stone
Sale price¥18,800
Zimbabwean sphene 0.704ct loose stone
Sale price¥14,800
Zimbabwean sphene 0.990ct loose stone
Sale price¥12,800
Zimbabwean sphene 0.726ct loose stone
Sale price¥14,800
[Rouge Cut] Brazilian Dumortierite in Quartz 1.184ct Loose Stone
Sale price¥14,800
[Rouge Cut] Brazilian Dumortierite in Quartz 1.493ct Loose Stone
Sale price¥9,800
Tanzanian Spessartine Garnet 0.209ct Loose Stone
Sale price¥4,980
Vietnamese aquamarine 1.728ct loose stone
Sale price¥18,800
Nigerian morganite 1.149ct loose stone
Sale price¥19,800
Yellow Diamond 3.4mm/0.165ct Loose (Fancy Vivid Orangy Yellow, SI-2)
Sale price¥29,800
Zimbabwean Bicolor Euclase 0.146ct Loose Stone
Sale price¥35,800
American Benitoite 2.2mm/0.270ct Loose Stone (Gradation Set)
Sale price¥69,800
Set of 2 rutile stones, 6.213ct (rough stone + loose stone)
Sale price¥59,800
Malawi Bicolor Zircon 0.811ct Loose Stone
Sale price¥29,800
Malawi Bicolor Zircon 1.661ct Loose Stone
Sale price¥59,800
Tanzanian Dragon Garnet 0.710ct Loose Stone
Sale price¥19,800
Australian boulder opal 1.868ct loose
Sale price¥18,800
Australian boulder opal 1.675ct loose
Sale price¥14,800
Australian boulder opal 28.880ct loose
Sale price¥59,800
Sri Lankan white sapphire 2.9mm/0.086ct loose (rose cut)
Sale price¥3,980
Color change garnet from Madagascar 0.648ct loose
Sale price¥8,800
Benitoite 0.095ct loose
Sale price¥18,800
Sphene from Madagascar 0.765ct loose
Sale price¥15,800
Blue zircon 3.283ct loose
Sale price¥75,800
Red spinel 0.195ct loose
Sale price¥5,980
Benitoite 2.7mm/0.114ct loose
Sale price¥25,800
Brazilian alexandrite 0.082ct loose
Sale price¥15,800
Prehnite 3.870ct loose
Sale price¥3,980
Playnight 3.085ct loose
Sale price¥3,980
Prehnite 3.874ct loose
Sale price¥3,980
Brazilian particolor Paraiba tourmaline 0.26ct loose GIA
Sale price¥598,000
Montebrasite from Madagascar 0.328ct loose
Sale price¥3,980
Myanmar Purple Spinel 0.872ct Loose Stone
Sale price¥8,800
YAG (yttrium aluminum garnet) 1.792ct loose
Sale price¥12,800
YAG (Yttrium Aluminum Garnet) 6.5mm/1.774ct loose stone
Sale price¥12,800
Brazilian Paraiba tourmaline 0.226ct loose (CuO:0.7%, MnO:2.5%)
Sale price¥39,800
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.