Brazilian Indicolite Tourmaline 0.352ct Loose Stone with Certification
Sale price¥29,800
Unheated Brazilian Imperial Topaz (Sherry Color) 0.314ct Loose
Sale price¥22,800
Brazilian unheated imperial topaz (sherry color) 0.368ct loose gemstone
Sale price¥25,800
Diamond 0.042ct loose (VS class equivalent, emerald cut)
Sale price¥6,980
Brazilian Imperial Topaz 0.402ct Loose Stone
Sale price¥9,800
Yellow tourmaline 0.277ct loose
Sale price¥6,980
Green tourmaline 0.559ct loose
Sale price¥6,980
Pink tourmaline 0.632ct loose
Sale price¥9,800
Pink tourmaline 1.575ct loose
Sale price¥12,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 6.020ct Loose Stone
Sale price¥15,800
Brazilian Bicolor Tourmaline 0.780ct Loose
Sale price¥12,800
Gray Diamond 2.8mm/0.089ct Loose (LIGHT GRAY, SI-2)
Sale price¥16,800
Chameleon Diamond 3.2mm/0.128ct Loose (FANCY LIGHT GRAY GREEN, SI-1)
Sale price¥31,800
Brown Diamond 6.5mm/0.989ct Loose Stone (FANCY DARK ORANGE BROWN, SI-2)
Sale price¥98,000
K18 Peridot and Diamond 0.03ct Ring
Sale price¥45,800
K18 Peridot and Diamond 0.03ct Ring
Sale price¥45,800
[Colorful] K18WG Blood Coral and Diamond (0.19ct) Brooch with certificate
Sale price¥398,000
[Calafri] K18WG Tsavorite 0.57ct Ring with Certificate
Sale price¥89,800
Unheated Brazilian Paraiba tourmaline 0.110ct loose AIGS
Sale price¥258,000
Pink Diamond 2.1mm/0.034ct Loose (FANCY PURPLE PINK, I-1)
Sale price¥34,800
Diamond 0.402ct Loose (H, VS2, Flanders Cut)
Sale price¥79,800
Pt950 Tanzania Lavender Tanzanite 1.51ct Ring
Sale price¥98,000
Pink Diamond (Treated) 0.095ct Loose (FANCY VIVID PURPLISH PINK, SI1)
Sale price¥26,800
K18YG Tanzanian Tanzanite 0.344ct Pendant Top
Sale price¥39,800
0.079ct Loose Brazilian Paraiba Tourmaline (CuO: 1.6% MnO: 2.8%)
Sale price¥29,800
Paraiba Tourmaline Loose Stone from Brazil 0.068ct (CuO: 1.1% MnO: 0.1%)
Sale price¥45,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:1.2% MnO:1.2%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.052ct Loose Stone (CuO:1.4% MnO:1.1%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.051ct Loose Stone (CuO:1.1% MnO:0.6%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.048ct (CuO:1.5% MnO:1.0%)
Sale price¥35,800
Brazilian Dumortierite in Quartz 0.387ct loose stone
Sale price¥3,980
Bicolor Grossular Garnet (Bicolor Tsavorite) from Kenya, 0.761 ct, Loose
Sale price¥22,800
Bicolor Grossular Garnet from Kenya (Bicolor Tsavorite) 0.496ct Loose
Sale price¥14,800
Untreated Brazilian green tourmaline, 0.456 ct, loose (teal color)
Sale price¥13,800
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.