Amazon green opal 1.490ct loose
Sale price¥5,980
Amazon green opal 1.140ct loose
Sale price¥5,980
Russian demantoid garnet (horsetail recognized) 2mm/0.055ct loose
Sale price¥9,800
Russian demantoid garnet (horsetail recognized) 2mm/0.053ct loose
Sale price¥9,800
Paraiba tourmaline from Brazil 0.047ct loose (CuO:2.2%, MnO:3.5%)
Sale price¥18,800
Paraiba tourmaline from Brazil 0.054ct loose (CuO:1.2%, MnO:3.1%)
Sale price¥19,800
Paraiba tourmaline from Brazil 0.353ct loose (CuO:0.8%, Mn:3.4%)
Sale price¥49,800
Bicolor tourmaline 1.652ct loose
Sale price¥25,800
[Konpeito] Pink amethyst 3.630ct loose
Sale price¥22,800
Brazilian Paraiba tourmaline 0.215ct loose (CuO:1.1%, MnO:3.3%)
Sale price¥59,800
White sapphire 0.537ct loose
Sale price¥19,800
White sapphire 0.464ct loose
Sale price¥15,800
White sapphire 0.418ct loose
Sale price¥16,800
Yellow sapphire 0.385ct loose
Sale price¥12,800
White sapphire 0.364ct loose
Sale price¥12,800
White sapphire 0.271ct loose
Sale price¥9,800
White sapphire 0.212ct loose
Sale price¥8,800
White sapphire 4.5mm/0.462ct loose
Sale price¥15,800
White sapphire 4.5mm/0.414ct loose
Sale price¥15,800
《Yurakucho Marui 2024112 takeout》White sapphire 0.338ct loose stone
Sale price¥12,800
Paraiba tourmaline from Brazil 0.230ct loose (CuO:1.2%, MnO:3.3%)
Sale price¥39,800
Paraiba tourmaline from Brazil 0.160ct loose (CuO:0.9%, MnO:3.9%)
Sale price¥39,800
Paraiba tourmaline from Brazil 0.213ct loose (CuO: 0.8%, MnO: 3.8%)
Sale price¥35,800
Paraiba tourmaline from Brazil 0.244ct loose (CuO:1.0%, MnO:1.9%)
Sale price¥39,800
Fancy Yellow Diamond 0.227ct Loose (FANCY YELLOW, I-2)
Sale price¥49,800
Color change garnet 0.794ct loose
Sale price¥6,980
White topaz 6.680ct loose
Sale price¥29,800
Opal 6.560ct loose
Sale price¥25,800
Cantera opal 7.130ct loose
Sale price¥14,800
Cantera Opal 6.920ct loose
Sale price¥15,800
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.
