Brazilian bicolor topaz 1.932ct loose stone
Sale price¥18,800
Brazilian unheated pink imperial topaz (sherry pink) 0.284ct loose stone
Sale price¥15,800
Brazilian unheated pink imperial topaz (sherry pink) 0.586ct loose stone
Sale price¥15,800
Brazilian unheated pink imperial topaz (sherry pink) 0.423ct loose stone
Sale price¥15,800
Synthetic black opal 1.209ct loose stone
Sale price¥18,800
Myanmar color change zircon 0.596ct loose stone
Sale price¥39,800
Madagascar Purple Sapphire 0.315ct Loose
Sale price¥12,800
Tanzanite from Tanzania 4.9mm/0.531ct loose stone
Sale price¥12,800
Tanzanian Kornerupine 0.301ct loose stone
Sale price¥25,800
Tanzanite from Tanzania 4.7mm/0.503ct loose stone
Sale price¥14,800
Ethiopian Opal 6.0mm/0.584ct Loose
Sale price¥12,800
Prehnite 3.016ct loose stone
Sale price¥6,980
Brazilian Medusa Quartz (Paraiba Quartz) 1.672ct Loose Stone
Sale price¥15,800
Brazilian Medusa Quartz (Paraiba Quartz) 2.250ct Loose
Sale price¥19,800
Brazilian copper rutilated quartz 1.445ct loose stone
Sale price¥8,800
Brazilian copper rutilated quartz 2.051ct loose stone
Sale price¥8,800
Zimbabwean Euclase 0.107ct loose stone
Sale price¥79,800
Tanzania Magnesioaxinite 0.198ct loose stone by Nikkei
Sale price¥69,800
Sri Lankan pink star sapphire 0.391ct loose stone
Sale price¥12,800
Sri Lankan pink star sapphire 0.270ct loose stone
Sale price¥12,800
0.095ct Brazilian Alexandrite Loose Stone (Emerald Cut)
Sale price¥35,800
Brazilian alexandrite 0.078ct loose
Sale price¥29,800
Brazilian Alexandrite 0.071ct loose stone (emerald cut)
Sale price¥29,800
Sri Lankan Dunilite 0.142ct loose stone with certificate
Sale price¥25,800
Tanzania Bicolor Zoisite 6.9mm/1.365ct Loose Stone
Sale price¥24,800
Sri Lankan saffron 0.264ct loose stone with certificate
Sale price¥22,800
Colombian pyrite emerald 27.414ct loose stone
Sale price¥298,000
[Sakura Shape] Mexican Opal 8.2mm/1.465ct {Collaboration} Loose Patch
Sale price¥45,800
[Takeshi Yamamoto] Brazilian rose quartz 41.633ct loose stone
Sale price¥59,800
Brazilian Ametrine 11.843ct loose stone
Sale price¥22,800
Yellow Diamond 4.7mm/0.390ct Loose (LIGHT YELLOW, VVS1, 3Excellent H&C)
Sale price¥49,800
Tanzanian Sunstone (Illusion Sunstone) 0.381ct Loose Stone
Sale price¥7,980
American red beryl 0.080ct loose
Sale price¥39,800
Myanmar Leuco Garnet 0.504ct Loose Stone JTL Catalog
Sale price¥39,800
Namibian Jeremejevite 0.193ct loose stone JTL catalogue
Sale price¥98,000
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.