Hackmanite 0.506ct loose
Sale price¥45,800
Taaffeite 0.241ct loose Japanese and German
Sale price¥39,800
Paraiba tourmaline from Brazil 0.205ct loose (CuO:0.8%, MnO:3.1%)
Sale price¥39,800
Paraiba tourmaline from Brazil 0.167ct loose (CuO:1.6%, MnO:3.0%)
Sale price¥29,800
Mexican Danburite 1.859ct loose stone (phantom cut)
Sale price¥9,800
Mexican Danburite 1.981ct loose stone (phantom cut)
Sale price¥9,800
Paraiba tourmaline from Brazil 0.086ct loose (CuO:1.5%, MnO:2.3%)
Sale price¥18,800
Paraiba tourmaline from Brazil 0.226ct loose (CuO:0.7%, MnO:3.6%)
Sale price¥39,800
Paraiba tourmaline from Brazil 0.204ct loose
Sale price¥29,800
Paraiba tourmaline from Brazil 0.239ct loose
Sale price¥45,800
Paraiba tourmaline from Brazil 0.232ct loose
Sale price¥45,800
Paraiba tourmaline from Brazil 0.240ct loose (CuO:0.7%, MnO:3.8%)
Sale price¥45,800
Tanzanian Clinozoisite 0.710ct Loose Stone (Phantom Cut)
Sale price¥3,980
Tanzanian Clinozoisite 0.560ct Loose Stone (Phantom Cut)
Sale price¥3,980
Spinel from Sri Lanka 0.800ct loose
Sale price¥6,980
Brazilian Pink Imperial Topaz 1.907ct Loose Japanese-German Edition
Sale price¥98,000
Colombian mica in emerald 1.314ct loose
Sale price¥39,800
Red beryl 0.173ct loose
Sale price¥29,800
Russian demantoid garnet (horsetail recognized) 4.2mm/0.336ct loose
Sale price¥79,800
American fluorite 0.842ct loose stone
Sale price¥2,980
Bicolor spinel 0.737ct loose
Sale price¥25,800
Mexican Opal 8mm/1.430ct Loose
Sale price¥25,800
Bicolor tourmaline 1.248ct loose
Sale price¥6,980
Bicolor tourmaline 1.097ct loose
Sale price¥5,980
Australian opal 14.837ct loose
Sale price¥98,000
Trapiche emerald 0.650ct loose (reverse trapiche)
Sale price¥6,980
Hemimorphite 29.778ct loose
Sale price¥79,800
Cat Cut (Leopard Print) Amber 0.906ct Loose Stone
Sale price¥9,800
Pink sapphire 0.934ct loose
Sale price¥15,800
Scapolite 1.780ct loose stone
Sale price¥9,800
Mexican Fire Opal 1.580ct Loose
Sale price¥25,800
Orthoclase 3.711ct loose stone, Japan-Germany exchange
Sale price¥15,800
Pink spinel 0.290ct loose
Sale price¥5,980
Purple spinel 0.210ct loose
Sale price¥3,980
Lavender spinel 0.160ct loose
Sale price¥3,980
[Sakura In-Cut] Mexican Opal 9mm/1.532ct Loose
Sale price¥45,800
Colombian emerald 0.222ct loose stone
Sale price¥59,800
Mexican Danburite 1.515ct loose stone (phantom cut)
Sale price¥8,800
Mexican Danburite 1.612ct loose stone (phantom cut)
Sale price¥8,800
Russian demantoid garnet (horsetail recognized) 4.4mm/0.394ct loose
Sale price¥69,800
Russian demantoid garnet (horsetail recognized) 4.6mm/0.423ct loose
Sale price¥79,800
Mexican fire agate 3.613ct loose
Sale price¥15,800
Green sapphire 7.545ct loose (spade cut)
Sale price¥59,800
Watermelon tourmaline 44.201ct Ruth Japanese-German book
Sale price¥398,000
Paudlettite 0.375ct loose Japanese-German book
Sale price¥298,000
Bicolor tourmaline 3.277ct loose
Sale price¥9,800
Cantera opal 17.284ct loose
Sale price¥29,800
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.