Zoisite 0.162ct loose stone (heart shape)
Sale price¥7,980
Zoisite 0.247ct loose stone (heart shape)
Sale price¥7,980
Andalusite from Spain, 0.425 ct loose
Sale price¥9,800
0.478ct Andalusite Loose Stone from Spain
Sale price¥8,800
Synthetic Alexandrite 0.414ct Loose
Sale price¥12,800
Sri Lankan Bi-Color Sapphire 0.434ct Loose Stone
Sale price¥12,800
Brazilian Lazulite 0.052ct Loose Stone with Certificate
Sale price¥32,800
Tanzanian Tanzanite 4.1mm/0.295ct Loose Stone
Sale price¥9,800
Tanzanian Tanzanite 0.406ct Loose Stone
Sale price¥12,800
Spanish Cobalt Calcite 0.253ct Loose Stone with Certificate
Sale price¥22,800
Brazilian Paraiba Tourmaline 0.170ct Loose Stone (CuO: 2.1%, MnO: 1.1%)
Sale price¥258,000
0.056 ct loose Eudialyte from Canada with certificate
Sale price¥15,800
Brazilian Lazuilte (Lazulite) 0.066ct Loose Stone with Certificate
Sale price¥39,800
0.274 ct Loose Colombian Bi-Color Emerald
Sale price¥98,000
Ruby 0.286ct Loose Stone with Certificate
Sale price¥22,800
Colombian mint color emerald 0.136ct loose stone
Sale price¥6,980
Colombian mint color emerald 0.155ct loose stone
Sale price¥7,980
Colombian Trapiche Emerald 0.422ct Loose
Sale price¥18,800
Colombian emerald 0.499ct rough stone
Sale price¥14,800
Colombian emerald 0.443ct rough stone
Sale price¥8,800
0.168ct Pakistan Vayrynenite Loose Gemstone
Sale price¥35,800
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
Madagascar Bekily Blue Garnet (Color Change Garnet) 0.257ct Loose Stone
Sale price¥25,800
Madagascar Bekily Blue Garnet (Color Change Garnet) 0.167ct Loose
Sale price¥16,800
Madagascar Bekily Blue Garnet (Color Change Garnet) 0.188ct Loose Stone
Sale price¥18,800
0.186ct loose Bekily blue garnet (color-change garnet) from Madagascar
Sale price¥18,800
0.213ct Loose Bekily Blue Garnet (Color Change Garnet) from Madagascar
Sale price¥22,800
Oregon Sunstone 0.272ct Loose
Sale price¥6,980
Zimbabwean Euclase 0.058ct loose stone
Sale price¥29,800
Zimbabwean Euclase 0.088ct loose stone
Sale price¥49,800
Benitoite 0.231ct loose
Sale price¥220,000
Benitoite 0.286ct loose
Sale price¥258,000
Benitoite 0.272ct loose stone (emerald cut)
Sale price¥248,000
Russian Alexandrite 2.5mm/0.078ct Loose Stone
Sale price¥49,800
Rhodochrosite from Detroit City, USA 3.1mm/0.154ct loose stone
Sale price¥19,800
Rhodochrosite from Detroit City, USA 3.2mm/0.150ct loose stone
Sale price¥19,800
Sapphire 0.461ct loose stone
Sale price¥12,800
Spanish Andalusite 0.435ct loose stone
Sale price¥6,980
Diamond 0.042ct loose (VS class equivalent, emerald cut)
Sale price¥6,980
Colombian emerald 0.345ct loose stone (silky type)
Sale price¥15,800
Lepidocrocite in quartz 0.308ct loose
Sale price¥6,980
Violet spinel 0.472ct loose
Sale price¥8,800
Yellow tourmaline 0.277ct loose
Sale price¥6,980
0.308ct Unset Yellow Sapphire (Sri Lankan)
Sale price¥13,800
Pakistani Lapis Lazuli (Lazurite) 0.150ct Loose Stone with Certificate
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.