Tanzanian Ayana spinel (hot pink spinel) 3.0mm/0.107ct loose
Sale price¥18,800
1.361ct loose Amphibole in Danburite from Brazil
Sale price¥14,800
Pink Diamond 0.075ct Loose (FANCY PURPLE PINK, SI1)
Sale price¥79,800
Brown Diamond 0.728ct Loose (FANCY DARK BROWN, SI2)
Sale price¥49,800
Brown Diamond 0.778 ct Loose (FANCY BROWN, SI1)
Sale price¥59,800
Loose Brown Diamond 5.0mm/0.556ct (FANCY LIGHT BROWN, VS-1)
Sale price¥39,800
Diamond 3.7mm/0.185ct Loose (D, VVS-2, 3Excellent H&C)
Sale price¥39,800
Brazilian Green Tourmaline 0.770ct Loose Stone with Appraisal Report
Sale price¥25,800
0.229 ct Loose Red Spinel from Myanmar with Certificate
Sale price¥45,800
Malawi Moonstone (Malawi) 1.651ct Loose
Sale price¥8,800
Malawian Moonstone (Malawi Moonstone) 2.184ct Loose
Sale price¥13,800
Malawi Moonstone 1.980ct Loose
Sale price¥11,000
Malawi Moonstone 2.155ct Loose
Sale price¥12,800
Malawi Moonstone 2.102ct Loose
Sale price¥14,800
Malawi Moonstone 1.747ct Loose
Sale price¥8,800
0.191ct Colombian emerald loose stone, Hōki-kyō
Sale price¥45,800
0.809ct Loose Bicolor Grossular Garnet from Kenya
Sale price¥25,800
USA Origin Oregon Sunstone 7.1mm/1.397ct Loose Stone
Sale price¥39,800
American Oregon Sunstone 10.8mm/4.864ct Loose
Sale price¥98,000
Brazilian Pyrite in Quartz 5.600ct Loose Gemstone
Sale price¥9,800
2.073ct Loose Australian Rainbow Lattice Sunstone
Sale price¥15,800
Sphalerite from Bulgaria 7.0mm/1.790ct Loose Stone
Sale price¥59,800
Loose Oregon Sunstone from the USA, 7.0mm/1.224ct
Sale price¥28,800
Oregon Sunstone from the USA, 8.1mm/1.840ct Loose Stone
Sale price¥39,800
Australian Rainbow Lattice Sunstone 2.902 ct Loose Stone
Sale price¥29,800
Australian Rainbow Lattice Sunstone 2.208ct Loose
Sale price¥22,800
Brazilian Dumortierite in Quartz 1.684ct Loose Gemstone
Sale price¥12,800
Brazilian Dumortierite in Quartz 4.152ct Loose Stone
Sale price¥25,800
Kochi Prefecture-produced red coral (Boke) 4.485ct loose gemstone
Sale price¥98,000
[Listing No. 12563397] Brazilian Alexandrite 0.217 ct Loose Stone
Sale price¥39,800
[Listed 12563403] Petzottaite from Madagascar 0.200ct Loose
Sale price¥29,800
[Listed as 22602651] [Colorful] K9 Ruby Pendant Top (Necklace Top)
Sale price¥19,800
[22602646 listed] [Karafuri] Pt850 Blue Sapphire 0.66ct Ring
Sale price¥59,800
[Listed as 12563264] Rough Russian Diamond (Sawable) 0.124ct
Sale price¥39,800
Sierra Leonean Rough Diamond (Sawable) 0.072 ct. [12563273 Listed]
Sale price¥22,800
[12563374 Posted] Bicolor Euclase from Zimbabwe, 0.055ct Loose Stone
Sale price¥14,800
[Listing 12563380] Unset 1.077ct Tanzanian Zircon
Sale price¥12,800
[Published on 12563384] Tanzanian Zircon 2.053ct Loose
Sale price¥19,800
[Posted on 12563395] Tanzanian Pink Spinel 0.148ct Loose Gemstone
Sale price¥22,800
[Item 12563407] Afghan Green Hauyne 0.075ct Loose Stone
Sale price¥29,800
[Published 12562264] Brazilian Lazulite 0.048ct Loose
Sale price¥36,800
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.