Pink spinel 0.365ct loose stone
Sale price¥9,800
Bicolor Zoisite 0.203ct loose stone
Sale price¥8,800
Bicolor Zoisite 0.273ct loose stone
Sale price¥7,980
Tanzanite 0.328ct loose stone
Sale price¥8,800
Bicolor Zoisite 0.229ct loose stone
Sale price¥6,980
Australian Black Opal 0.362ct Loose
Sale price¥18,800
Brazilian Lazulite 0.067ct Loose with certificate
Sale price¥39,800
Brazilian dumortierite in quartz, 0.813 ct, loose
Sale price¥9,800
Brazilian dumortierite in quartz, 0.796 ct, loose
Sale price¥7,980
Brazilian Dumortierite in Quartz 0.543ct Loose Stone
Sale price¥5,980
Tanzanite from Tanzania 0.416ct loose stone
Sale price¥12,800
Madagascar Blue Sapphire 0.347ct Loose Stone with Appraisal Report
Sale price¥25,800
Yellow sapphire 0.294ct loose
Sale price¥8,800
Yellow sapphire 0.464ct loose
Sale price¥9,800
Cambodian blue zircon 0.258ct loose
Sale price¥6,980
Australian Rainbow Lattice Sunstone 0.657ct Loose Gemstone
Sale price¥13,800
Zimbabwe Green Diamond Rough (Sawable) 0.402ct Rough Stone with Trigon
Sale price¥148,000
American Anthill Garnet 4.0mm/0.359ct Loose
Sale price¥12,800
[Sale on March 22nd at 10 PM] Golden Zircon 0.416ct Loose Stone
Sale price¥9,800
Diamond 0.244ct Loose Stone (F, VS2, Flanders Cut)
Sale price¥39,800
0.209ct Yellow Diamond Loose (Fancy Deep Brownish Yellow, VVS-2)
Sale price¥49,800
Cambodian Colorless Zircon 0.621ct Loose Stone
Sale price¥12,800
Sri Lankan Hessonite Garnet 0.441ct Loose Stone
Sale price¥8,800
Synthetic Alexandrite 0.338ct loose stone
Sale price¥12,800
US-sourced Oregon Sunstone 0.428ct Loose
Sale price¥18,800
Tanzanian Mandarin Garnet, 0.418 ct Loose Stone
Sale price¥25,800
Colombian emerald 0.155ct loose stone
Sale price¥29,800
Sri Lankan Blue Sapphire (Ice Blue) 0.272ct Loose
Sale price¥12,800
Zimbabwean Bicolor Euclase 0.227ct Loose Stone
Sale price¥49,800
Angola Green Diamond Rough (Sawable) 0.528ct Rough (with Trigon)
Sale price¥198,000
0.451 ct loose Colombian emerald
Sale price¥39,800
0.097ct Grandidierite Loose Stone from Madagascar
Sale price¥29,800
0.227 ct Loose Pink Spinel from Mozambique
Sale price¥12,800
Tanzanian Lavender Tanzanite 0.391ct Loose Stone
Sale price¥12,800
Pigeon Blood Ruby 0.250ct Loose Stone
Sale price¥79,800
Brazilian Medusa Quartz (Paraiba Quartz) 3.9mm/0.237ct Loose
Sale price¥15,800
0.343 ct Tanzanite Loose Gemstone from Tanzania
Sale price¥8,800
0.296ct Loose Tanzanite from Tanzania
Sale price¥12,800
Cambodian Blue Zircon 0.440ct Loose
Sale price¥9,800
Afghan Diaspore 0.239ct Loose
Sale price¥15,800
Colombian emerald 3.1mm/0.093ct loose stone
Sale price¥22,800
Tanzanian Green Zoisite 0.354ct Loose Stone
Sale price¥12,800
Green zoisite from Tanzania, 0.262 ct loose
Sale price¥9,800
USA origin Peridot, 0.496 ct, 2-stone matched pair, loose
Sale price¥12,800
Tanzanian Mandarin Garnet 0.352ct Loose Stone
Sale price¥18,800
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.