Silky diamond 2.7mm/0.086ct loose
Sale price¥9,800
Rhodochrosite 0.331ct loose from Detroit City
Sale price¥25,800
Brazilian unheated particolor Paraiba tourmaline 0.84ct loose GIA
Sale price¥2,580,000
Bekily Blue Garnet from Madagascar (color change garnet) 0.297ct loose
Sale price¥19,800
Brazilian Lazurite (Celestite) 0.281ct Ruth Japanese-German Edition
Sale price¥118,000
Tanzanian Kornerupine 0.277ct loose stone
Sale price¥29,800
Cornell pin from Tanzania 0.246ct loose
Sale price¥39,800
Pakistani vanadium sphene 0.759ct loose
Sale price¥49,800
Colombian emerald 3.1mm/0.093ct loose stone
Sale price¥22,800
Pigeon Blood Ruby 0.250ct Loose Stone
Sale price¥79,800
Pigeon Blood Ruby 4.6mm/0.490ct Loose
Sale price¥128,000
Tanzanian Zoisite 5.5mm/0.689ct Loose
Sale price¥18,800
Cambodian blue zircon, 7.0mm/1.962ct loose
Sale price¥39,800
Paraiba tourmaline from Brazil 0.097ct loose
Sale price¥22,800
Paraiba tourmaline from Brazil 0.162ct loose
Sale price¥69,800
Colombian emerald 0.159ct loose stone
Sale price¥47,800
Indian Parrot Chrysoberyl 4.5mm/0.375ct Loose Gemstone
Sale price¥15,800
0.097ct Grandidierite Loose Stone from Madagascar
Sale price¥29,800
Loose Pink Diamond, 2.5mm/0.097ct (FANCY PINK, SI2, Princess Cut)
Sale price¥148,000
Brown Diamond 5.2mm/0.561ct Loose (FANCY DARK BROWN, SI2)
Sale price¥29,800
0.451 ct loose Colombian emerald
Sale price¥39,800
Sri Lankan Moonstone 1.578ct Loose Gemstone
Sale price¥12,800
Colombian oil-free emerald 0.510ct loose GIA
Sale price¥598,000
Brazilian Paraiba tourmaline 0.065ct loose (CuO:2.0%, MnO:2.6%)
Sale price¥22,800
Madagascar Pezzottaite 0.670ct Loose Stone, Japan-Germany Scale
Sale price¥298,000
Colombian oil-free emerald 0.220ct loose GIA
Sale price¥248,000
Angola Green Diamond Rough (Sawable) 0.528ct Rough (with Trigon)
Sale price¥198,000
Colombian mint-color emerald, 5.1mm/0.517ct loose stone
Sale price¥12,800
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 0.805ct loose stone
Sale price¥39,800
Synthetic Alexandrite 0.338ct loose stone
Sale price¥12,800
Sri Lankan Hessonite Garnet Loose Stone, 6.5mm/1.353ct
Sale price¥12,800
0.209ct Yellow Diamond Loose (Fancy Deep Brownish Yellow, VVS-2)
Sale price¥49,800
Diamond 0.244ct Loose Stone (F, VS2, Flanders Cut)
Sale price¥39,800
US Peridot 0.632ct Loose Stone
Sale price¥9,800
[Sale on March 22nd at 10 PM] Golden Zircon 0.416ct Loose Stone
Sale price¥9,800
Brazilian Dumortierite in Quartz 0.849ct Loose Gemstone
Sale price¥9,800
Yellow diamond 0.188ct loose (FANCY INTENSE YELLOW, VS1)
Sale price¥47,800
Paraiba tourmaline from Mozambique 0.240ct loose
Sale price¥29,800
Colombian trapiche emerald 13.466ct loose
Sale price¥398,000
Bicolor Sphalerite from Spain 6.6mm/1.496ct Loose
Sale price¥25,800
Unheated Pigeon Blood Ruby 0.380ct Loose Stone AIGS
Sale price¥79,800
Cornelpine from Tanzania 0.331ct loose
Sale price¥22,800
Myanmar color change zircon 1.00ct loose (reverse color change)
Sale price¥69,800
Madagascar Blue Sapphire 0.347ct Loose Stone with Appraisal Report
Sale price¥25,800
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.