Brazilian alexandrite 0.091ct loose
Sale price¥15,800
Brazilian alexandrite 0.102ct loose
Sale price¥15,800
Brazilian Paraiba tourmaline 0.156ct raw stone (CuO:2.5%, MnO:0.5%)
Sale price¥15,800
Brazilian Paraiba tourmaline 0.448ct raw stone (CuO:2.7%, MnO:2.0%)
Sale price¥19,800
Brazilian Paraiba tourmaline 0.455ct raw stone (CuO: 0.9%, MnO: 2.2%)
Sale price¥15,800
Color change Andesine 1.67ct loose
Sale price¥25,800
Color change Andesine 1.90ct loose
Sale price¥29,800
YAG (yttrium aluminum garnet) 7.3mm./2.150ct loose
Sale price¥12,800
YAG (yttrium aluminum garnet) 7.5mm/2.410ct loose
Sale price¥12,800
Bicolor sapphire 0.856ct loose
Sale price¥18,800
Brazilian mint-colored emerald 0.945ct loose stone
Sale price¥25,800
Brazilian Morganite 1.266ct loose stone
Sale price¥29,800
Brazilian green tourmaline 0.755ct loose stone
Sale price¥18,800
Congo Pink Tourmaline 5.0mm/0.463ct Loose Stone
Sale price¥24,800
Congo Pink Tourmaline 5.9mm/0.798ct Loose Stone
Sale price¥25,800
Congo Pink Tourmaline 6.0mm/0.825ct Loose Stone
Sale price¥29,800
Brazilian Elestial Amethyst 3.093ct Loose Stone
Sale price¥19,800
Brazilian Dumortierite in Quartz 0.978ct Loose Stone
Sale price¥12,800
Oligoclase Sunstone 6.432ct Loose Stone
Sale price¥25,800
Paraiba tourmaline from Mozambique, 3.5mm/0.172ct loose stone
Sale price¥15,800
Brazilian green tourmaline 0.194ct loose stone
Sale price¥12,800
Star spinel 1.210ct loose
Sale price¥15,800
Paraiba tourmaline from Mozambique 0.154ct loose stone
Sale price¥19,800
Tanzanian Dragon Garnet 1.019ct Loose Stone
Sale price¥25,800
Tanzanian Dragon Garnet 0.977ct Loose Stone
Sale price¥27,800
Colombian emerald 0.101ct loose stone
Sale price¥15,800
1.476ct loose sphalerite from Spain
Sale price¥29,800
Brazilian Imperial Topaz 0.563ct Loose Stone
Sale price¥15,800
Brazilian Green Spodumene 2.029ct Loose Stone
Sale price¥12,800
Tanzanian Almandine Garnet 2.992ct Loose Stone, Japan-Germany Exchange
Sale price¥15,800
Sri Lankan saffron 0.116ct loose stone with certificate of authenticity
Sale price¥25,800
Bicolor star sapphire from Myanmar 1.190ct loose (pink sapphire)
Sale price¥25,800
Silky pink spinel from Mozambique 0.610ct loose
Sale price¥18,800
American Anthill Garnet 0.822ct Loose Stone
Sale price¥19,800
Brazilian Bicolor Beryl 0.556ct Loose Stone
Sale price¥29,800
Synthetic Alexandrite 5.7mm/0.827ct Loose Stone
Sale price¥19,800
Brazilian Swiss Blue Topaz 1.065ct Loose Stone
Sale price¥11,000
Mongolian Bicolor Andesine 0.944ct Loose Stone
Sale price¥15,800
Zimbabwean sphene 0.751ct loose stone
Sale price¥16,800
Zimbabwean sphene 1.170ct loose stone
Sale price¥22,800
Zimbabwean sphene 0.850ct loose stone
Sale price¥19,800
Zimbabwean sphene 0.756ct loose stone
Sale price¥18,800
South African Sugilite 5.2mm/0.434ct Loose Stone (Rose Cut)
Sale price¥18,800
Blue sapphire 0.291ct loose stone
Sale price¥18,800
Blue sapphire 4.1mm/0.332ct loose stone
Sale price¥25,800
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.