Diamond 0.042ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
Diamond 0.061ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
Red beryl 0.136ct loose
Sale price¥25,800
Brazilian bicolor tourmaline 2.047ct loose
Sale price¥29,800
Kunzite from Afghanistan 3.973ct loose stone
Sale price¥12,800
Brazilian rose amethyst 0.793ct loose stone
Sale price¥15,800
Synthetic rutile 5.1mm/0.893ct loose stone
Sale price¥9,800
Synthetic rutile 1.020ct loose stone
Sale price¥18,800
Pink spinel 3.208ct loose
Sale price¥98,000
Andalusite 0.192ct loose stone
Sale price¥2,980
Andalusite 0.293ct loose stone
Sale price¥3,980
Synthetic Moissanite 0.509ct loose stone (tie cut)
Sale price¥3,980
Synthetic Moissanite 0.632ct loose stone (tie cut)
Sale price¥3,980
Hot Pink Spinel 0.203ct Loose (Mahenge Spinel)
Sale price¥8,800
Sapphire from Madagascar 4.3mm/0.398ct loose
Sale price¥12,800
Felspar 1.939ct loose from Sri Lanka
Sale price¥5,980
Madagascar Dumortierite (single crystal) 0.195ct loose stone
Sale price¥89,800
Brazilian Blue Anatase 0.424ct Loose Stone
Sale price¥49,800
Russian Demantoid Garnet (Horsetail) 3.8mm/0.249ct Loose Stone
Sale price¥39,800
Oregon Sunstone from the United States, 0.530ct loose stone
Sale price¥15,800
2.594ct loose Oregon sunstone from the United States
Sale price¥39,800
Brazilian Yellow Beryl 9.747ct Loose Stone
Sale price¥98,000
Cobalt spinel from Vietnam 2mm/0.031ct loose Japanese-German edition
Sale price¥59,800
Brazilian Green Tourmaline 5.0mm/0.401ct Loose Stone (Rose Cut)
Sale price¥9,800
Australian Prehnite 1.691ct loose stone
Sale price¥9,800
1.705ct Australian Prehnite Loose Stone
Sale price¥9,800
Paraiba tourmaline from Brazil 0.144ct loose (CuO:0.9%,MnO:2.8%)
Sale price¥55,800
Pink zoisite from Tanzania 0.536ct loose Japanese German edition
Sale price¥39,800
Felspar 2.993ct loose from Sri Lanka
Sale price¥6,980
[12545123 published] Yellow Beryl 0.696ct loose
Sale price¥3,980
Montana Sapphire 3mm/0.155ct loose
Sale price¥18,800
Baddeleyite from Myanmar 0.279ct Ruth Japanese German edition
Sale price¥15,800
Unheated silky pink sapphire from Vietnam 0.426ct loose
Sale price¥9,800
Green sapphire 0.518ct loose (teal green)
Sale price¥8,800
Colombian pyrite in emerald 4.592ct loose
Sale price¥110,000
Hemimorphite 34.490ct loose
Sale price¥55,800
Bicolor tanzanite 0.479ct loose
Sale price¥18,800
Sri Lankan star sapphire 1.487ct loose
Sale price¥8,800
Bicolor Andesine 6mm/0.783ct loose (color shift)
Sale price¥12,800
Bicolor Andesine 6mm/0.699ct loose (color shift)
Sale price¥12,800
Bicolor Andesine 6mm/0.824ct loose (color shift)
Sale price¥12,800
Bicolor Andesine 6mm/0.852ct loose (color shift)
Sale price¥12,800
Tanzanian Almandine Garnet 2.972ct Loose Stone
Sale price¥18,800
Tanzanian Almandine Garnet 1.564ct Loose Stone
Sale price¥12,800
Tanzanian Rhodolite Garnet 3.486ct Loose Stone
Sale price¥24,800
Oregon Sunstone from the United States, 4.678ct loose stone
Sale price¥69,800
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.