Australian Iron Opal 17.439ct Loose
Sale price¥18,800
Congo Cobalt Calcite 1.439ct Loose Stone
Sale price¥18,800
Diamond rough (makeable) 0.284ct rough
Sale price¥12,800
Cambodian Zircon 2.495ct Loose
Sale price¥22,800
Colombian mint-color emerald, 5.1mm/0.517ct loose stone
Sale price¥12,800
Tanzanian Zoisite 0.956ct Loose Stone
Sale price¥19,800
Sri Lankan Hessonite Garnet 1.674ct Loose Stone
Sale price¥15,800
Tanzanian Rhodolite Garnet 1.194ct Loose Stone
Sale price¥15,800
Tanzanite 0.753ct loose stone from Tanzania
Sale price¥25,800
Tanzanian Tanzanite, 5.0mm/0.558ct Loose Stone
Sale price¥15,800
Australian black opal 0.565ct loose stone
Sale price¥29,800
Afghan Bicolor Beryl 9.490ct Loose Gemstone (with Rainbow Inclusions)
Sale price¥25,800
Tanzanian Bekiri Blue Garnet (Color Change Garnet) 0.102ct Loose Stone
Sale price¥12,800
Tanzanian Bicolor Zoisite 0.312ct Loose Stone
Sale price¥12,800
Sri Lankan Blue Sapphire (Ice Blue) 0.272ct Loose
Sale price¥12,800
Colombian emerald 0.155ct loose stone
Sale price¥29,800
Mexican Fire Opal 0.459ct Loose
Sale price¥18,800
0.175ct loose hot pink sapphire from Mozambique
Sale price¥15,800
Tanzanian Mandarin Garnet, 0.418 ct Loose Stone
Sale price¥25,800
US-sourced Oregon Sunstone 0.428ct Loose
Sale price¥18,800
German Hauyne 2.2mm/0.035ct Loose Stone
Sale price¥18,800
German Apatite 0.048ct Loose Stone
Sale price¥19,800
Benitoite from the USA, 0.064ct loose
Sale price¥29,800
German Auyinite 3.5mm/0.131ct Loose Stone
Sale price¥29,800
Tanzanian Rhodolite Garnet 2.370 ct Loose Stone
Sale price¥19,800
Cambodian Colorless Zircon 1.121ct Loose Stone
Sale price¥18,800
Australian Prehnite 2.666ct loose stone
Sale price¥12,800
Synthetic Rutile 0.768ct Loose
Sale price¥12,800
Synthetic rutile 2.462ct loose stone
Sale price¥25,800
Sri Lankan Hessonite Garnet Loose Stone, 6.5mm/1.353ct
Sale price¥12,800
Cambodian Colorless Zircon 0.621ct Loose Stone
Sale price¥12,800
0.174ct Brown Diamond Loose (FANCY DARK BROWN, SI-2)
Sale price¥25,800
American Peridot 0.643ct Loose Stone
Sale price¥12,800
Tanzanian Rhodolite Garnet 1.203ct Loose
Sale price¥12,800
Tanzanian Rhodolite Garnet 1.765ct Loose Gemstone
Sale price¥18,800
Mexican fire opal, 0.733 ct, loose
Sale price¥29,800
Synthetic Blue Sapphire 2.012ct Loose (Synthetic Sapphire)
Sale price¥25,800
Synthetic Blue Sapphire 1.551ct Loose Stone (Synthetic Sapphire)
Sale price¥15,800
Brazilian Dumortierite in Quartz 2.282ct Loose Gemstone
Sale price¥18,800
South African Sugilite 0.908ct loose stone
Sale price¥14,800
South African Sugilite 0.793ct loose stone
Sale price¥12,800
American Anthill Garnet 4.0mm/0.359ct Loose
Sale price¥12,800
Brazilian Dumortierite in Quartz 3.009ct Loose Stone
Sale price¥29,800
Brazilian Dumortierite in Quartz 1.112ct Loose Gemstone (Faceted Cut)
Sale price¥11,000
Brazilian Dumortierite in Quartz 1.383ct Loose Gemstone
Sale price¥14,800
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.