Tanzanite 1.055ct loose stone
Sale price¥29,800
Tanzanite 1.458ct loose stone
Sale price¥39,800
Mongolian color change andesine 1.486ct loose stone
Sale price¥18,800
Chinese Fluorite 16.590ct Loose Patch
Sale price¥5,980
Mozambique pink tourmaline 1.006ct loose stone
Sale price¥8,800
Indian Moss Agate 19.271ct Loose Stone (Leaf Carving)
Sale price¥6,980
Mexican Fire Opal (Faceted Cut) 0.934ct Loose
Sale price¥25,800
Colombian Euclase 1.314ct loose stone
Sale price¥39,800
Brazilian Lepidocrocite in Quartz 9.0mm/2.735ct Loose Stone
Sale price¥14,800
Mozambique Rhodolite Garnet 1.146ct Loose Stone
Sale price¥12,800
Pyrope Almandine Garnet 2.514ct Loose Stone
Sale price¥29,800
Synthetic Alexandrite 0.570ct loose stone
Sale price¥18,800
Australian black opal 0.544ct loose stone
Sale price¥18,800
Brazilian Sky Blue Topaz (untreated) 2.560ct loose stone
Sale price¥12,800
Sri Lankan Yellow Sapphire 0.474ct Loose
Sale price¥15,800
Brazilian rutilated quartz (rutilated quartz) 7.741ct loose stone
Sale price¥15,800
American Red Beryl 0.254ct Loose
Sale price¥59,800
American Red Beryl 0.260ct Loose
Sale price¥69,800
Brazilian unheated pink imperial topaz (sherry pink) 0.931ct loose stone
Sale price¥98,000
Brazilian Paraiba Tourmaline in Quartz 6.0mm/0.794ct Loose Stone
Sale price¥15,800
Sri Lankan bicolor sapphire 0.484ct loose stone
Sale price¥12,800
Colombian pyrite-bearing euclase 23.430ct rough stone by Takakikyo
Sale price¥19,800
[Takeshi Yamamoto] Bicolor Smoky Quartz 10.674ct Loose Stone
Sale price¥39,800
Zimbabwe bicolor euclase 0.205ct loose stone
Sale price¥98,000
Brazilian pyrite in quartz 57.230ct loose stone
Sale price¥25,800
Nigerian Cobalt Garnite 0.216ct Loose Stone, Japan-Germany Exchange
Sale price¥45,800
Zimbabwe bicolor euclase rough stone 0.960ct
Sale price¥39,800
Madagascar Bicolor Sapphire 0.626ct Loose
Sale price¥29,800
Congo hemimorphite 9.849ct loose stone
Sale price¥49,800
Colombian mica in emerald 1.940ct loose
Sale price¥49,800
Ethiopian Opal 1.014ct Loose
Sale price¥3,980
Myanmar Musgravite 0.214ct Loose Stone Nikko Kan
Sale price¥258,000
Kunzite from Afghanistan 8.609ct loose stone
Sale price¥14,800
Spanish Andalusite 0.74ct loose stone
Sale price¥6,980
Australian Boulder Opal 41.770ct Loose
Sale price¥29,800
Australian Boulder Opal 12.220ct Loose
Sale price¥12,800
Mexican Fire Opal 1.330ct Loose (Contralus Opal)
Sale price¥19,800
Mexican Fire Opal 1.610ct Loose (Contralus Opal)
Sale price¥19,800
Brazilian Pink Euclase 1.259ct Loose Stone Japan-Germany
Sale price¥398,000
Sri Lankan bicolor sapphire 0.304ct loose stone
Sale price¥14,800
Indian Star Garnet 14.200ct Loose Stone (6 Rows)
Sale price¥5,980

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.



















































