Amazon green opal 2.790ct loose
Sale price¥12,800
Amazon green opal 3.220ct loose
Sale price¥8,800
Amazon green opal 2.580ct loose
Sale price¥9,800
Amazon green opal 2.480ct loose
Sale price¥9,800
Amazon green opal 1.750ct loose
Sale price¥8,800
Amazon green opal 1.680ct loose
Sale price¥6,980
Amazon green opal 1.660ct loose
Sale price¥8,800
Amazon green opal 1.620ct loose
Sale price¥6,980
Amazon green opal 1.490ct loose
Sale price¥6,980
Amazon green opal 1.490ct loose
Sale price¥5,980
Amazon green opal 1.140ct loose
Sale price¥5,980
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
Fancy Yellow Diamond 0.227ct Loose (FANCY YELLOW, I-2)
Sale price¥49,800
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
《Yurakucho Marui 2024112 takeout》Ruby 0.213ct loose stone
Sale price¥8,800
Bicolor sapphire 0.298ct loose
Sale price¥44,800
{Yurakucho Marui 2024112 takeout} Bicolor sapphire 0.263ct loose stone
Sale price¥39,800
[On sale from 10pm on 11/14] Peruvian blue opal 1.420ct loose
Sale price¥11,000
Blue opal 1.390ct loose
Sale price¥7,980
Bicolor sapphire 0.562ct loose
Sale price¥14,800
Bicolor sapphire 0.374ct loose
Sale price¥9,800
Colombian pyrite emerald 2.380ct rough stone
Sale price¥39,800
Ethiopian oil-free emerald 0.32ct loose GIA
Sale price¥148,000
Hyalite Opal 2.920ct loose (fluorescent even in sunlight)
Sale price¥29,800
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
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
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.