Australian black opal 0.386ct loose stone
Sale price¥39,800
YAG (Yttrium Aluminum Garnet) 7.0mm/1.772ct loose stone
Sale price¥9,800
Brazilian bicolor tourmaline 1.209ct loose stone
Sale price¥9,800
Montana Sapphire (Blue Sapphire) 0.207ct Loose
Sale price¥6,980
Sri Lankan Chrysoberyl Cat's Eye 0.519ct Loose Stone
Sale price¥8,800
Myanmar pink spinel 0.344ct loose stone
Sale price¥8,800
Tanzanite from Tanzania 0.250ct loose stone
Sale price¥7,980
Tanzania Bicolor Zoisite 0.320ct Loose Stone
Sale price¥7,980
Tanzanite from Tanzania 0.321ct loose stone
Sale price¥6,980
Tanzanite from Tanzania 0.250ct loose stone
Sale price¥8,800
Ruby 0.284ct loose
Sale price¥15,800
Brazilian Green Tourmaline 0.703ct Loose Stone
Sale price¥15,800
Brazilian Green Tourmaline 0.764ct Loose Stone
Sale price¥9,800
Sri Lankan Blue Sapphire 0.226ct Loose
Sale price¥14,800
Brazilian bicolor tourmaline 0.675ct loose stone
Sale price¥9,800
Mexican Yellow Opal 0.673ct Loose
Sale price¥8,800
Mexican Yellow Opal 0.428ct Loose
Sale price¥8,800
Sri Lankan Yellow Sapphire 0.261ct Loose
Sale price¥12,800
Kyanite 1.042ct loose (commonly known as Paraiba color kyanite)
Sale price¥8,800
Myanmar pink spinel 0.465ct loose stone
Sale price¥19,800
Myanmar Purple Spinel 0.434ct Loose Stone
Sale price¥12,800
Sri Lankan White Sapphire 0.385ct Loose
Sale price¥14,800
Brazilian Paraiba Tourmaline 0.167ct loose stone (CuO: 1.1%, MnO: 3.6%)
Sale price¥69,800
Tanzanian Cobalt Spinel (Blue Spinel) 0.118ct Loose Stone Japan-Germany
Sale price¥29,800
Cambodian colorless zircon 0.508ct loose stone
Sale price¥8,800
Cambodian colorless zircon 1.212ct loose stone
Sale price¥15,800
Cambodian colorless zircon 0.512ct loose stone
Sale price¥8,800
Cambodian colorless zircon 0.309ct loose stone
Sale price¥4,980
Brazilian Petalite 0.713ct loose stone
Sale price¥5,980
Brazilian Petalite 1.654ct loose stone
Sale price¥9,800
Mexican Cantera Opal 1.534ct Loose
Sale price¥8,800
Tanzanite from Tanzania 0.804ct loose stone
Sale price¥24,800
Bicolor tourmaline 0.840ct loose
Sale price¥22,800
Mexican Fire Opal 0.780ct Loose
Sale price¥12,800
Rhodochrosite from South Africa 4.2mm/0.409ct loose
Sale price¥39,800
Oregon Sunstone from the United States 0.314ct loose stone
Sale price¥14,800
Oregon Sunstone from the United States 4.0mm/0.206ct loose stone
Sale price¥8,800
Oregon Sunstone from the United States 4.0mm/0.204ct loose stone
Sale price¥6,980
Mozambique Rubellite 1.706ct Loose Stone
Sale price¥39,800
Oregon Sunstone from the United States 0.372ct loose stone
Sale price¥12,800
Kenyan Gold Sheen Sapphire 4mm/0.438ct Loose
Sale price¥55,800
Oregon Sunstone from the United States 5.0mm/0.460ct loose stone
Sale price¥19,800
Diamond (cabochon cut) 0.183ct loose
Sale price¥24,800
Brazilian Paraiba Tourmaline in Quartz 4.5mm/0.284ct Loose Stone
Sale price¥22,800
Brazilian Paraiba Tourmaline in Quartz 1.146ct Loose Stone
Sale price¥29,800
Brazilian Paraiba Tourmaline in Quartz 8.0mm/1.287ct Loose Stone
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.