Paraiba tourmaline from Brazil 0.200ct loose (CuO: 0.7%, MnO: 4.0%)
Sale price¥39,800
[KEN] Pink tourmaline 0.530ct loose
Sale price¥3,980
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
Opal from Mexico 1.810ct loose
Sale price¥14,800
Russian demantoid garnet cat's eye (horsetail recognized) 0.128ct loose
Sale price¥21,800
Andesine Labradorite (commonly known as Rainbow Moonstone) 1.090ct loose
Sale price¥17,800
Madeira Citrine 6.8mm/1.150ct Loose
Sale price¥5,980
FANCY INTENSE YELLOW, VS-2
Sale price¥34,800
Bicolor sapphire 0.380ct loose
Sale price¥15,800
[KEN] Fire opal 2 stone pair 4mm/0.336ct loose
Sale price¥6,980
Rough diamond (makeable) 0.480ct loose VS class equivalent
Sale price¥98,000
Iron Opal 20.328ct Ruth Japanese-German Dictionary
Sale price¥15,800
Black Star Sapphire 1.410ct loose
Sale price¥14,800
Aventurine aquamarine 1.450ct loose
Sale price¥6,980
Rhodolite garnet 0.912ct loose
Sale price¥6,980
Brazilian Bicolor Tourmaline 4.554ct Ruth Japanese-German Edition
Sale price¥298,000
Bicolor tourmaline 1.039ct loose
Sale price¥39,800
Colombian emerald cat's eye 0.108ct loose
Sale price¥12,800
Colombian emerald cat's eye 0.083ct loose
Sale price¥8,800
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.
