Tanzanian Sunstone (Illusion Sunstone) 0.627ct Loose Stone
Sale price¥9,800
Mexican Cantera Opal 1.120ct Loose
Sale price¥8,800
Afghanistan Hackmanite 0.134ct loose stone
Sale price¥6,980
Afghanistan Hackmanite 0.121ct loose stone
Sale price¥6,980
Brazilian Lavender Quartz (Scorolite) 0.797ct Loose Stone
Sale price¥7,980
Brazilian pink tourmaline 0.385ct loose stone
Sale price¥7,980
0.597ct Green Apatite Loose Stone from Madagascar
Sale price¥6,980
Golden Iolite (Cordierite) from Madagascar 0.193ct loose stone
Sale price¥8,800
Tanzanian Sunstone (Illusion Sunstone) 5.0mm/0.338ct Loose Stone
Sale price¥8,800
Australian Prehnite 0.707ct loose stone
Sale price¥6,980
[Rouge Cut] Brazilian Bicolor Tourmaline 0.578ct Loose
Sale price¥9,800
[Cat Cut] Brazilian Dendritic Quartz 6.775ct Loose
Sale price¥15,800
Rouge Cut Almandine Garnet from Mozambique, 5.952ct Loose
Sale price¥15,800
Rouge Cut Almandine Garnet from Mozambique, 5.841ct Loose
Sale price¥14,800
Synthetic rutile 1.362ct loose stone
Sale price¥15,800
Illusion Tourmaline (Iridescent Tourmaline) 0.622ct Loose Stone
Sale price¥19,800
Brazilian Rubellite 4.078ct Loose Stone
Sale price¥98,000
Mozambique Almandine Garnet 2.959ct Loose Stone
Sale price¥19,800
Mozambique Almandine Garnet 1.652ct Loose Stone
Sale price¥15,800
Mozambique Almandine Garnet 7.7mm/1.781ct Loose Stone
Sale price¥18,800
Cambodian Blue Zircon (Ratanakiri Blue) 2.822ct Loose Stone
Sale price¥98,000
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
[Shinjuku Marui Annex 202511] Tanzanian Dragon Garnet 0.850ct Loose
Sale price¥22,800
[Shinjuku Marui Annex 202511] Tanzanian Dragon Garnet 0.818ct Loose
Sale price¥22,800
[Shinjuku Marui Annex 202511] Tanzanian Dragon Garnet 0.931ct Loose
Sale price¥25,800
[Shinjuku Marui Annex 202511] Tanzanian Dragon Garnet 1.015ct Loose
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
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
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.