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) 0.091ct rough
Sale price¥22,800
South African diamond rough (sawable) 0.085ct rough
Sale price¥19,800
Madagascar Blue Sapphire 0.401ct Loose
Sale price¥14,800
Madagascar sapphire 0.448ct loose stone
Sale price¥19,800
Brazilian alexandrite 0.120ct loose
Sale price¥15,800
Brazilian Alexandrite 0.106ct Loose Stone (Silky Alexandrite)
Sale price¥15,800
Brazilian alexandrite 0.116ct loose
Sale price¥15,800
Bekily Blue Garnet (color change garnet) 0.114ct loose
Sale price¥11,800
Australian Rainbow Lattice Sunstone 1.746ct Loose Stone
Sale price¥15,800
Spessartite Garnet from Madagascar 1.053ct loose stone
Sale price¥29,800
Brazilian dendritic quartz 4.587ct loose stone
Sale price¥12,800
Brazilian Pink Tourmaline 0.862ct Loose Stone
Sale price¥15,800
Turkish pink diaspore 0.205ct loose stone
Sale price¥12,800
Brazilian Pink Tourmaline 0.470ct Loose Stone
Sale price¥12,800
Brazilian pink tourmaline 0.968ct loose stone
Sale price¥25,800
Cambodian Blue Zircon 1.757ct Loose
Sale price¥19,800
Brazilian Green Tourmaline 2.218ct Loose
Sale price¥29,800
Tanzanian pink tourmaline 0.558ct loose stone
Sale price¥12,800
Mozambique Rubellite 0.410ct Loose Stone
Sale price¥15,800
Brazilian Bicolor Tourmaline 7.2mm/1.326ct Loose Stone
Sale price¥19,800
Tanzanian Golden Sheen Sapphire 3.8mm/0.301ct Loose Stone
Sale price¥13,800
Synthetic rutile 6mm/1.091c loose stone
Sale price¥22,800
[Sakura Incut] Danburite 8mm/1.581ct loose stone with patch
Sale price¥29,800
Blue watermelon tourmaline 2.380ct loose
Sale price¥15,800
Colombian emerald cat's eye 0.138ct loose
Sale price¥17,800
Mexican Fire Agate 5.110ct Loose Stone
Sale price¥14,800
Pink tourmaline 0.692ct loose stone
Sale price¥18,800
Pink tourmaline 0.845ct loose stone
Sale price¥14,800
0.421ct loose yellow sapphire from Ratnapura, Sri Lanka
Sale price¥11,800
Brazilian Quartz in Quartz 15.373ct Loose Stone
Sale price¥24,800
Tanzanian Kornerupine 0.199ct loose stone
Sale price¥19,800
Tanzanian Kornerupine 0.172ct loose stone
Sale price¥18,800
Tanzanian Kornerupine 0.212ct loose stone
Sale price¥19,800
Tanzanian Mandarin Garnet 0.359ct Loose Stone
Sale price¥22,800
Paraiba tourmaline from Brazil 0.057ct loose
Sale price¥22,800
Paraiba tourmaline from Brazil 0.061ct loose
Sale price¥25,800
Paraiba tourmaline from Brazil 0.049ct loose
Sale price¥19,800
Tanzanian Kornerupine 0.213ct loose stone
Sale price¥12,800
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.