Brazilian bicolor tourmaline 4.497ct loose stone
Sale price¥69,800
Sri Lankan pink zircon 1.991ct loose stone
Sale price¥29,800
Brazilian Yellow Beryl 9.747ct Loose Stone
Sale price¥98,000
2.594ct loose Oregon sunstone from the United States
Sale price¥39,800
1.705ct Australian Prehnite Loose Stone
Sale price¥9,800
Australian Prehnite 1.691ct loose stone
Sale price¥9,800
Oregon Sunstone from the United States, 0.530ct loose stone
Sale price¥15,800
Brazilian Green Tourmaline 5.0mm/0.401ct Loose Stone (Rose Cut)
Sale price¥9,800
Russian Demantoid Garnet (Horsetail) 3.8mm/0.249ct Loose Stone
Sale price¥39,800
Madagascar Dumortierite (single crystal) 0.195ct loose stone
Sale price¥89,800
"Initial D" x KARATZ 30th Anniversary Collaboration Acrylic Stand
Sale price¥1,650
TV Anime "BLUELOCK" x KARATZ Collaboration Vol. 2 Mark Pendant Top
Sale price¥16,500
TV Anime Blue Lock x KARATZ Collaboration Vol. 2 Layered Ring
Sale price¥16,500
Felspar 1.939ct loose from Sri Lanka
Sale price¥5,980
Sapphire from Madagascar 4.3mm/0.398ct loose
Sale price¥12,800
Hot Pink Spinel 0.203ct Loose (Mahenge Spinel)
Sale price¥8,800
Synthetic Moissanite 0.632ct loose stone (tie cut)
Sale price¥3,980
Synthetic Moissanite 0.509ct loose stone (tie cut)
Sale price¥3,980
Andalusite 0.293ct loose stone
Sale price¥3,980
Andalusite 0.192ct loose stone
Sale price¥2,980
Pink spinel 3.208ct loose
Sale price¥98,000
Synthetic rutile 1.020ct loose stone
Sale price¥18,800
Synthetic rutile 5.1mm/0.893ct loose stone
Sale price¥9,800
Brazilian rose amethyst 0.793ct loose stone
Sale price¥15,800
Kunzite from Afghanistan 3.973ct loose stone
Sale price¥12,800
Brazilian bicolor tourmaline 2.047ct loose
Sale price¥29,800
Diamond 0.061ct loose (trapeze cut, VS class equivalent)
Sale price¥7,980
Diamond 0.042ct loose (trapeze cut, VS class equivalent)
Sale price¥6,980
Diamond 0.039ct loose (trapeze cut, equivalent to VS class)
Sale price¥5,980
Madeira Citrine 7mm/0.938ct loose
Sale price¥3,980
Bicolor tourmaline 22.088ct loose
Sale price¥298,000
Mexican Fire Opal 4.2mm/0.182ct Loose
Sale price¥8,800
Blue tourmaline from Afghanistan 4.5mm/0.326ct loose
Sale price¥7,980
Felspar 3.330ct loose from Sri Lanka
Sale price¥8,800
Silky pink sapphire from Madagascar, 1.050ct loose, GIT
Sale price¥128,000
0.200ct loose diamond (G, VVS2, radiant cut)
Sale price¥29,800
Tanzanian Almandine Garnet 11.0mm/6.787ct Loose Stone
Sale price¥49,800
Tanzanian Almandine Garnet 10mm/6.196ct Loose Stone
Sale price¥29,800
Mozambique Rhodolite Garnet 3.662ct Loose Stone
Sale price¥25,800
Tanzanian Almandine Garnet 6.5mm/1.071ct Loose Stone
Sale price¥11,000
Tanzanian Almandine Garnet 2.897ct Loose Stone
Sale price¥22,800
Tanzanian Almandine Garnet 2.169 ct Loose Stone
Sale price¥21,800
Mozambican Rhodolite Garnet 3.161ct Loose
Sale price¥22,800
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.