Colombian emerald 10.708ct rough stone
Sale price¥14,800
Colombian emerald 4.205ct rough stone
Sale price¥15,800
Zimbabwean Euclase 0.960ct rough stone (bicolor Euclase)
Sale price¥49,800
Zimbabwean Euclase 2.976ct rough stone
Sale price¥158,000
Euclase with pyrite from Colombia 206.450ct rough stone
Sale price¥34,800
Euclase with pyrite from Colombia 23.430ct rough stone
Sale price¥29,800
Euclase with pyrite from Colombia 37.340ct rough stone
Sale price¥15,800
Cornelpine 0.520ct rough stone
Sale price¥3,980
Cornelpine 0.500ct rough stone
Sale price¥4,980
Cornerpine 0.890ct rough stone
Sale price¥5,980
Cornelpine 0.880ct rough stone
Sale price¥3,980
Cornelpine 0.740ct rough stone
Sale price¥3,980
Cornerpine 0.400ct rough stone
Sale price¥2,980
Cornerpine 0.730ct rough stone
Sale price¥2,980
Cornelpine 0.490ct rough stone
Sale price¥2,980
Colombian pyrite emerald 2.380ct rough stone
Sale price¥39,800
Colombian emerald 0.350ct rough stone
Sale price¥12,800
[E_27 Yurakucho Marui take-out] Colombian emerald 2.680ct rough stone
Sale price¥19,800
Colombian emerald 0.922ct rough stone
Sale price¥9,800
Brazilian Paraiba tourmaline 0.252ct raw stone (CuO:2.3%, MnO:2.8%)
Sale price¥14,800
Brazilian Paraiba tourmaline 0.213ct raw stone (CuO:1.4%, MnO:1.2%)
Sale price¥15,800
Brazilian Paraiba tourmaline 0.455ct raw stone (CuO: 0.9%, MnO: 2.2%)
Sale price¥19,800
Brazilian Paraiba tourmaline 0.448ct raw stone (CuO:2.7%, MnO:2.0%)
Sale price¥29,800
Brazilian Paraiba tourmaline 0.225ct raw stone (CuO:2.1%, MnO:0.9%)
Sale price¥12,800
Brazilian Paraiba tourmaline 0.184ct raw stone (CuO:1.5%, MnO:0.6%)
Sale price¥14,800
Brazilian Paraiba tourmaline 0.180ct raw stone (CuO:1.8%, MnO:0.1%)
Sale price¥12,800
Brazilian Paraiba tourmaline 0.285ct raw stone (CuO:1.7%, MnO:2.7%)
Sale price¥19,800
Brazilian Paraiba tourmaline 0.156ct raw stone (CuO:2.5%, MnO:0.5%)
Sale price¥22,800
Oligoclase Sunstone 26.660ct rough stone
Sale price¥19,800
Colombian emerald 10.940ct rough stone
Sale price¥89,800
Colombian emerald 8.90ct rough stone
Sale price¥65,800
Zircon 8.12ct raw stone《New birthstone for December》
Sale price¥12,800
Diamond 0.240ct rough stone
Sale price¥5,980
Diamond 0.430ct rough stone
Sale price¥12,800
Diamond 0.330ct rough stone
Sale price¥6,980
Diamond 0.210ct rough stone
Sale price¥9,800
Diamond 2.810ct rough stone
Sale price¥12,800
Colombian Euclase 548.00ct rough stone
Sale price¥248,000
Tanzanite 4.940ct rough stone
Sale price¥6,980
Tanzanite 5.930ct rough stone
Sale price¥8,800
Cornerpine 0.730ct rough stone
Sale price¥4,980
Spanish Sphalerite 69.210ct rough stone
Sale price¥25,800
Jeremejevite 0.490ct rough stone from Namibia
Sale price¥12,800
Jeremejevite 1.140ct rough stone
Sale price¥19,800

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.