Hollandite in quartz 7.640ct loose
Sale price¥18,800
Brazilian Paraiba tourmaline 0.455ct raw stone (CuO: 0.9%, MnO: 2.2%)
Sale price¥19,800
Brazilian Paraiba tourmaline 0.213ct raw stone (CuO:1.4%, MnO:1.2%)
Sale price¥15,800
Bicolor sapphire 0.562ct loose
Sale price¥14,800
Tinker Bell Quartz (Pink Fire Quartz) 3.616ct loose
Sale price¥22,800
Red Beryl 0.108ct loose (marquise cut)
Sale price¥19,800
Bicolor tourmaline 1.652ct loose
Sale price¥25,800
Paraiba tourmaline from Brazil 0.054ct loose (CuO:1.2%, MnO:3.1%)
Sale price¥19,800
Boulder opal 4.980ct loose
Sale price¥29,800
Larimar 3.450ct loose
Sale price¥12,800
Opal 6.560ct loose
Sale price¥25,800
Brazilian dumortierite in quartz 3.250ct loose
Sale price¥15,800
Rhodochrosite from Sweet Home 2.6mm/0.100ct loose
Sale price¥13,800
Grandidierite 0.242ct loose stone from Yurakucho Marui 2024112
Sale price¥25,800
White sapphire 4.5mm/0.414ct loose
Sale price¥15,800
Yellow sapphire 0.385ct loose
Sale price¥12,800
Paraiba tourmaline from Brazil 0.047ct loose (CuO:2.2%, MnO:3.5%)
Sale price¥18,800
Colombian emerald cat's eye 0.093ct loose
Sale price¥12,800
Colombian emerald cat's eye 0.112ct loose
Sale price¥12,800
Tinker Bell Quartz (Pink Fire Quartz) 2.528ct loose
Sale price¥14,800
Malaya garnet 0.972ct loose
Sale price¥14,800
Diamond 0.054ct loose (VS class equivalent, emerald cut)
Sale price¥12,800
Blue tourmaline 1.520ct loose
Sale price¥22,800
Medusa Quartz (Paraiba Quartz) 3.890ct loose
Sale price¥14,800
Morganite 3.220ct loose
Sale price¥19,800
Bicolor kyanite 1.080ct loose
Sale price¥12,800
[KEN] Zircon 0.638ct loose
Sale price¥14,800
Bicolor kyanite 0.820ct loose
Sale price¥14,800
Tourmaline cat's eye 4.590ct loose
Sale price¥15,800
Bicolor tourmaline 1.590ct loose
Sale price¥25,800
Bicolor tourmaline 1.030ct loose
Sale price¥25,800
Cantera Opal 6.920ct loose
Sale price¥15,800
Cantera opal 7.130ct loose
Sale price¥14,800
White sapphire 4.5mm/0.462ct loose
Sale price¥15,800
White sapphire 0.464ct loose
Sale price¥15,800
Morganite 1.80ct loose
Sale price¥14,800
Tinker Bell Quartz (Pink Fire Quartz) 3.450ct loose
Sale price¥19,800
Bicolor sapphire 0.262ct loose
Sale price¥25,800
Jeremejevite 0.175ct loose
Sale price¥14,800
Sphene 0.890ct loose
Sale price¥12,800
Bicolor sapphire 0.800ct loose
Sale price¥19,800
Bloodshot Iolite Sunstone 1.090ct Loose
Sale price¥15,800
Bicolor sapphire 0.323ct loose
Sale price¥12,800
Oregon sunstone 0.740ct loose
Sale price¥12,800
Red beryl 0.151ct loose
Sale price¥22,800
Bicolor tourmaline cat's eye 4.730ct loose
Sale price¥22,800
Bicolor tourmaline 1.400ct loose
Sale price¥25,800
White topaz 6.680ct loose
Sale price¥29,800
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.
The fifth reprint has been decided and is now on sale at bookstores nationwide and online.
Written by KARATZ, book “Jewelry Illustrated Book”
The book provides explanations about over 300 types of gemstones, from new standard birthstones to rare stones that are hard to find, as well as a diary of our company representative, Mr. Koyama's, gemstone shopping experience in Thailand and Sri Lanka, and tips for photographing gemstones, allowing you to learn about the appeal of gemstones from various perspectives.