Pink tourmaline 0.845ct loose stone
Sale price¥12,800
Goshenite 0.846ct loose stone
Sale price¥7,980
Brazilian Quartz in Quartz 15.373ct Loose Stone
Sale price¥18,800
Paraiba tourmaline from Brazil 0.061ct loose
Sale price¥25,800
Paraiba tourmaline from Brazil 0.049ct loose
Sale price¥19,800
Paraiba tourmaline from Brazil 0.018ct loose
Sale price¥12,800
Brazilian Seafoam Tourmaline, 4.1mm/0.303ct loose stone
Sale price¥16,800
Brazilian Seafoam Tourmaline, 4.1mm/0.280ct Loose
Sale price¥15,800
0.334 ct Brazilian Seafoam Tourmaline Loose Stone
Sale price¥16,800
Paraiba tourmaline from Brazil 0.071ct loose
Sale price¥19,800
[Cat cut] Brazilian dendritic agate 0.774ct loose stone
Sale price¥6,980
Untreated Color-Change Brazilian Paraiba Tourmaline 0.050ct Loose Stone GIA
Sale price¥128,000
Brazilian Flower Quartz 7.064ct Loose Stone
Sale price¥14,800
Brazilian Bicolor Euclase 2.4mm/0.051ct Loose Stone
Sale price¥18,800
Brazilian Romanesite in Amethyst 7.083ct Loose Stone
Sale price¥15,800
Brazilian Flower Quartz 4.666ct Loose Stone
Sale price¥9,800
Brazilian Paraiba Tourmaline 0.038ct Loose Stone (CuO:1.3%, MnO:2.7%)
Sale price¥35,800
Brazilian Paraiba Tourmaline 0.041ct Loose (CuO:1.9%, MnO:4.3%)
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.038ct Loose Stone (CuO:1.6%, MnO:2.8%)
Sale price¥45,800
Paraiba Tourmaline from Brazil 0.037ct loose stone (CuO:1.4%, MnO:2.6%)
Sale price¥25,800
Brazilian Paraiba Tourmaline 0.050ct Loose Stone (CuO:1.9%, MnO:3.6%)
Sale price¥39,800
Paraiba Tourmaline from Brazil, 0.039ct loose stone (CuO:1.6%, MnO:2.9%)
Sale price¥35,800
0.035ct loose Brazilian Paraiba Tourmaline (CuO:1.6%, MnO:3.3%)
Sale price¥29,800
Brazilian Aquamarine 68.088ct Loose Stone with Gem Identification Report
Sale price¥39,800
0.559ct Brazilian Emerald Cat's Eye Loose Stone with Certificate
Sale price¥9,800
Brazilian Emerald Cat's Eye 0.459ct Loose Stone with Certification
Sale price¥9,800
Brazilian Emerald Cat's Eye 1.022ct Loose Stone with Appraisal
Sale price¥12,800
Brazilian Dumortierite in Quartz 0.432ct Loose Stone
Sale price¥6,980
Brazilian alexandrite 0.061ct loose
Sale price¥12,800
Brazilian alexandrite 0.058ct loose
Sale price¥11,000
Brazilian alexandrite 0.051ct loose
Sale price¥9,800
Brazilian alexandrite 0.060ct loose
Sale price¥11,000
Goshenite 6.1mm/0.905ct loose stone
Sale price¥7,980
Brazilian Color-Shift Amethyst, 1.865 ct Loose
Sale price¥9,800
Brazilian Lavender Quartz (Scorolite) 2.211ct Loose
Sale price¥12,800
Brazilian Lavender Quartz (Scorolite) 0.952ct Loose Stone
Sale price¥9,800
Brazil Color Change Amethyst 6.559ct Loose Stone
Sale price¥15,800
Brazil Rose Amethyst 6.325ct Loose Gemstone
Sale price¥12,800
Brazilian Lazulite 0.052ct Loose Stone with Certificate
Sale price¥32,800
Brazilian Limonite in Topaz 7.141ct Loose
Sale price¥19,800
Brazilian Tricolor Tourmaline 32.207ct Loose (Parti-color Tourmaline)
Sale price¥398,000
Brazilian Green Spodumene Loose Stone 1.460 ct
Sale price¥12,800
Brazilian Sky Blue Topaz, 0.756 ct, loose stone
Sale price¥8,800
Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%)
Sale price¥258,000
Brazilian Sky Blue Topaz 0.802ct Loose Stone
Sale price¥9,800
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.