Brazilian Green Tourmaline 12.252ct Loose Stone
Sale price¥398,000
Paraiba tourmaline from Brazil 0.154ct loose
Sale price¥29,800
Tanzanian Lavender Tanzanite 0.498ct Loose Stone
Sale price¥14,800
Tanzanian Lavender Tanzanite 0.382ct Loose Stone
Sale price¥12,800
Tanzanian Lavender Tanzanite 0.558ct Loose Stone
Sale price¥12,800
Tanzanian bicolor tanzanite 0.573ct loose stone
Sale price¥15,800
Tanzanian Lavender Tanzanite 0.577ct Loose Stone
Sale price¥15,800
Brazilian Pink Tourmaline 0.418ct Loose Stone (Rouge Cut)
Sale price¥9,800
Russian rough diamond (sawable) 0.088ct loose
Sale price¥22,800
Myanmar Pink Taaffeite 0.340ct Loose GIT
Sale price¥39,800
Brazilian Paraiba Tourmaline 0.360ct Loose GIA
Sale price¥298,000
Brazilian Green Tourmaline 0.825ct Loose Stone
Sale price¥9,800
Brazilian Green Tourmaline 0.883ct Loose Stone
Sale price¥19,800
Brazilian Green Tourmaline 0.376ct Loose Stone
Sale price¥9,800
Brazilian Green Tourmaline 0.332ct Loose Stone
Sale price¥9,800
Brazilian Tinkerbell Quartz (Pink Fire Quartz) 0.344ct Loose Stone
Sale price¥12,800
Tanzanite from Tanzania 0.497ct loose stone
Sale price¥12,800
Canary Yellow Tourmaline from Mozambique 0.190ct loose stone
Sale price¥8,800
Canary Yellow Tourmaline from Mozambique 0.132ct loose stone
Sale price¥8,800
Tanzanite from Tanzania 0.245ct loose stone
Sale price¥9,800
Tanzanite from Tanzania 0.385ct loose stone
Sale price¥9,800
Myanmar Trapiche Sapphire 0.206ct Loose
Sale price¥18,800
American Herkimer Diamond (Rock Crystal) 5.5mm/0.528ct Loose
Sale price¥8,800
Tanzanite 0.760ct loose stone (sugarloaf cut)
Sale price¥9,800
Nigerian bicolor tourmaline 0.379ct loose stone
Sale price¥8,800
Canary Yellow Tourmaline from Mozambique 0.142ct loose stone
Sale price¥8,800
Canary Yellow Tourmaline from Mozambique 0.170ct loose stone
Sale price¥8,800
Tanzanite from Tanzania 0.272ct loose stone
Sale price¥8,800
[12550851] 2.944ct Mozambique pink tourmaline loose stone
Sale price¥49,800
[12550838] Brazilian Limonite in Topaz 4.680ct Loose Stone
Sale price¥11,800
Paraiba Tourmaline from Mozambique 0.360ct loose stone
Sale price¥18,800
Colombian Trapiche Emerald 0.488ct Loose
Sale price¥25,800
Russian rough diamond (sawable) 0.117ct loose
Sale price¥29,800
Russian rough diamond (sawable) 0.101ct loose
Sale price¥25,800
South African diamond rough (sawable) 0.110ct rough
Sale price¥25,800
South African diamond rough (sawable) 0.085ct rough
Sale price¥19,800
Brazilian Indigolite Tourmaline 7.002ct Loose Stone, Japan-Germany Exchange
Sale price¥198,000
Diamond (cabochon cut) 0.206ct loose
Sale price¥55,800
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.