Blue sapphire 4.1mm/0.332ct loose stone
Sale price¥25,800
Brazilian Swiss Blue Topaz 1.065ct Loose Stone
Sale price¥11,000
Australian boulder opal 1.156ct loose
Sale price¥3,980
Burmese spinel 0.950ct loose (buff top)
Sale price¥15,800
Australian boulder opal 0.874ct loose
Sale price¥3,980
Hemimorphite from Congo 0.432ct loose
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.181ct loose
Sale price¥3,980
Euclase from Zimbabwe 0.409ct loose
Sale price¥45,800
Bicolor tanzanite 0.492ct raw stone from Tanzania
Sale price¥6,980
Bicolor tanzanite 1.121ct rough stone from Tanzania
Sale price¥6,980
Bicolor tanzanite 1.165ct rough stone from Tanzania
Sale price¥7,980
Celestite from Madagascar 7.080ct loose Japanese and German
Sale price¥98,000
Australian boulder opal 1.173ct loose
Sale price¥5,980
Pink zoisite from Tanzania 6.7mm/1.393ct loose (peach tanzanite)
Sale price¥128,000
Green Zoisite 3.617ct loose
Sale price¥118,000
Bicolor Zoisite 2.481ct loose
Sale price¥69,800
[Posted 12543724] Hemimorphite 9.286ct loose
Sale price¥59,800
[Posted 12543723] Hemimorphite 64.144ct loose
Sale price¥198,000
[Posted 12543725] Hemimorphite 16.864ct loose
Sale price¥79,800
[Posted 12543726] Hemimorphite 9.282ct loose
Sale price¥59,800
[Posted 12543727] Hemimorphite 11.133ct loose
Sale price¥59,800
American Benitoite 0.262ct loose stone
Sale price¥128,000
Australian Prehnite 0.707ct loose stone
Sale price¥6,980
[Rouge Cut] Brazilian Bicolor Tourmaline 0.578ct Loose
Sale price¥9,800
Golden Iolite (Cordierite) from Madagascar 0.193ct loose stone
Sale price¥8,800
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
[Cat Cut] Brazilian Dendritic Quartz 6.775ct Loose
Sale price¥15,800
Mexican Cantera Opal 1.120ct Loose
Sale price¥8,800
Australian Opal 0.374ct Loose
Sale price¥6,980
Tanzanian purple sapphire 0.355ct loose stone
Sale price¥9,800
Brazilian Petalite 1.197ct Loose Stone
Sale price¥7,980
Cambodian colorless zircon 0.630ct loose stone
Sale price¥8,800
Mexican Cantera Opal 14.690ct Loose
Sale price¥12,800
[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
Vietnamese aquamarine 1.728ct loose stone
Sale price¥18,800
Zimbabwean sphene 0.987ct loose stone
Sale price¥19,800
Zimbabwean sphene 0.978ct loose stone
Sale price¥18,800
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
American Benitoite 0.185ct Loose Stone
Sale price¥128,000
Pakistani Veirinite 0.147ct Loose Stone with Certificate of Authenticity
Sale price¥36,800
Brazilian Alexandrite 0.097ct Loose Stone (Emerald Cut)
Sale price¥38,800
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.