Sphene 0.590ct loose
Sale price¥5,980
Sphene 0.320ct loose
Sale price¥5,980
Kunzite 9.440ct loose
Sale price¥14,800
Clinohumite 2.057ct loose Japanese-German book
Sale price¥39,800
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
Red beryl 0.252ct loose
Sale price¥54,800
Red beryl 0.187ct loose
Sale price¥35,800
Red beryl 0.108ct loose
Sale price¥22,800
Red Beryl 0.108ct loose (marquise cut)
Sale price¥19,800
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
Sri Lankan White Sapphire 4.3mm/0.382ct Loose
Sale price¥14,800
White sapphire 0.338ct loose
Sale price¥12,800
Dumortierite in quartz 1.360ct loose
Sale price¥8,800
Dumortierite in quartz 1.080ct loose
Sale price¥7,980
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
Grandidierite 0.242ct loose
Sale price¥25,800
Tinker Bell Quartz (Pink Fire Quartz) 3.616ct loose
Sale price¥22,800
British Rosary Fluorite 3.806ct loose
Sale price¥18,800
British Rosary Fluorite 2.962ct loose
Sale price¥9,800
British Rosary Fluorite 3.043ct loose
Sale price¥9,800
British Rosary Fluorite 2.304ct loose
Sale price¥12,800
British Rogerley Fluorite 2.147ct loose
Sale price¥12,800

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.