Colombian pyrite emerald 2.380ct rough stone
Sale price¥39,800
Ethiopian oil-free emerald 0.32ct loose GIA
Sale price¥148,000
Peach benitoite 0.135ct loose Japanese-German book (orange/blue)
Sale price¥178,000
[Sakura Incut] Green Quartz 20mm/22.840ct《Collaboration》Loose with emblem
Sale price¥118,000
[Sakura Incut] Lemon Quartz 20mm/21.540ct《Collaboration》Loose with emblem
Sale price¥118,000
Hyalite Opal 2.920ct loose (fluorescent even in sunlight)
Sale price¥29,800
Russian demantoid garnet (horsetail recognized) 0.664ct loose
Sale price¥198,000
Colombian emerald 0.350ct rough stone
Sale price¥12,800
《Yurakucho Marui 2024112 takeout》Colombian emerald 2.680ct rough stone
Sale price¥19,800
Colombian emerald 0.922ct rough stone
Sale price¥9,800
Euclase from Colombia 5.223ct Ruth Japanese German edition
Sale price¥228,000
Paraiba tourmaline from Brazil 0.224ct loose (CuO:0.8%, MnO:1.7%)
Sale price¥39,800
Paraiba tourmaline from Brazil 0.203ct loose (CuO: 0.9%, MnO: 2.6%)
Sale price¥35,800
Paraiba tourmaline from Brazil 0.200ct loose (CuO: 0.7%, MnO: 4.0%)
Sale price¥39,800
Dendritic agate 1.800ct loose
Sale price¥3,980
[KEN] Pink tourmaline 0.530ct loose
Sale price¥3,980
Dendritic quartz 4.520ct loose
Sale price¥5,980
Dendritic quartz 4.420ct loose
Sale price¥6,980
Hyalite Opal 3 stone set 1.320ct loose
Sale price¥12,800
Hyalite Opal 2 stones 5.8mm/1.180ct loose
Sale price¥9,800
Rough diamond (makeable) 0.353ct loose
Sale price¥33,800
Rough diamond (makeable) 0.279ct loose
Sale price¥29,800
Rough diamond (makeable) 0.284ct loose
Sale price¥29,800
FANCY VIVID ORANGY YELLOW, SI-1
Sale price¥22,800
Hessonite garnet 1.920ct loose
Sale price¥5,980
Diamond 0.131ct loose (G, VS-1, EXCELLENT heart & cupid)
Sale price¥32,800
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
Russian demantoid garnet cat's eye (horsetail recognized) 0.147ct loose
Sale price¥39,800
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
[Sakura Incut] Sky Blue Topaz 12mm Loose with Patch
Sale price¥49,800
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.
