Parasitic Peridot 0.292ct Loose Stone
Sale price¥98,000
Pigeon Blood Ruby 4.0mm/0.290ct Loose Stone AIGS
Sale price¥59,800
Russian Alexandrite 0.088ct loose stone
Sale price¥59,800
[12552640] Unheated Brazilian Paraiba Tourmaline 0.073ct loose stone
Sale price¥69,800
[12552618] Unheated Brazilian Paraiba Tourmaline 0.063ct loose stone
Sale price¥65,800
[Posted 12549094] Sri Lankan sapphire cat's eye 3.739ct loose
Sale price¥59,800
Bicolor sapphire 1.030ct loose from Windsor, Tanzania
Sale price¥89,800
[Posted 12543727] Hemimorphite 11.133ct loose
Sale price¥59,800
[Posted 12543726] Hemimorphite 9.282ct loose
Sale price¥59,800
[Posted 12543725] Hemimorphite 16.864ct loose
Sale price¥79,800
[Posted 12543724] Hemimorphite 9.286ct loose
Sale price¥59,800
Brazilian Paraiba tourmaline 0.370ct loose (CuO:1.0%, MnO:1.2%)
Sale price¥59,800
Celestite from Madagascar 7.080ct loose Japanese and German
Sale price¥98,000
Musgravite from Myanmar 0.546ct loose Japanese German edition
Sale price¥98,000
Brazilian Rubellite 4.078ct Loose Stone
Sale price¥98,000
Cambodian Blue Zircon (Ratanakiri Blue) 2.822ct Loose Stone
Sale price¥98,000
Cambodian Blue Zircon (Ratanakiri Blue) 2.232ct Loose Stone
Sale price¥79,800
Cambodian Blue Zircon (Ratanakiri Blue) 1.513ct Loose Stone
Sale price¥59,800
American Benitoite 2.2mm/0.270ct Loose Stone (Gradation Set)
Sale price¥69,800
Set of 2 rutile stones, 6.213ct (rough stone + loose stone)
Sale price¥59,800
Malawi Bicolor Zircon 1.661ct Loose Stone
Sale price¥59,800
Australian boulder opal 28.880ct loose
Sale price¥59,800
Blue zircon 3.283ct loose
Sale price¥75,800
[Camellia cut] Mexican fire opal 1.270ct loose with patch
Sale price¥98,000
Pt950 Benitoite 0.10ct Aquamarine Blue Diamond Ring
Sale price¥89,800
Colombian Trapiche Emerald 1.448ct Loose
Sale price¥69,800
Australian boulder opal 9.120ct loose
Sale price¥98,000
Mozambique rubellite 1.406ct loose stone
Sale price¥69,800
Brazilian Pink Imperial Topaz 1.907ct Loose Japanese-German Edition
Sale price¥98,000
Russian demantoid garnet (horsetail recognized) 4.2mm/0.336ct loose
Sale price¥79,800
Australian opal 14.837ct loose
Sale price¥98,000
Hemimorphite 29.778ct loose
Sale price¥79,800
Colombian emerald 0.222ct loose stone
Sale price¥59,800
Russian demantoid garnet (horsetail recognized) 4.4mm/0.394ct loose
Sale price¥69,800
Russian demantoid garnet (horsetail recognized) 4.6mm/0.423ct loose
Sale price¥79,800
Green sapphire 7.545ct loose (spade cut)
Sale price¥59,800
18K Yellow Gold Tanzanian Kornerupine 0.217ct Aquamarine Ring
Sale price¥89,800
[Koshu Precious Stone Kiriko] Bicolor Fluorite 6.980ct Loose with Patch
Sale price¥59,800
Kunzite 37.35ct loose
Sale price¥55,800
Bicolor spinel 1.040ct loose (gray/purple)
Sale price¥69,800
[Sakura Incut] Ametrine 9.740ct loose with patch
Sale price¥59,800
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.