Bicolor sapphire from Madagascar 0.198ct loose
Sale price¥9,800
Bicolor sapphire from Madagascar 0.200ct loose
Sale price¥16,800
Bicolor sapphire from Madagascar 0.231ct loose
Sale price¥18,800
Bicolor sapphire from Madagascar 0.212ct loose
Sale price¥9,800
Mexican water opal 0.212ct loose (contrarus opal)
Sale price¥39,800
Yellow sapphire from Sri Lanka 0.222ct loose
Sale price¥12,800
Bicolor sapphire 0.335ct loose
Sale price¥9,800
Opal 6mm/0.595ct loose (rose cut)
Sale price¥9,800
Yellow sapphire 5mm/0.572ct loose
Sale price¥5,980
Unheated silky pink sapphire from Vietnam 0.197ct loose
Sale price¥12,800
Unheated silky pink sapphire from Vietnam 0.247ct loose
Sale price¥12,800
Unheated silky pink sapphire from Vietnam 0.198ct loose
Sale price¥8,800
Unheated silky pink sapphire from Vietnam 0.175ct loose
Sale price¥7,980
Mexican cantera opal 11.663ct loose
Sale price¥39,800
Diamond 0.051ct loose (trapeze cut, VS class equivalent)
Sale price¥9,800
Diamond 0.777ct loose (butterfly cut)
Sale price¥77,777
Mexican cantera opal 12.610ct loose
Sale price¥29,800
Bicolor sapphire 0.231ct loose
Sale price¥6,980
Bicolor sapphire 0.207ct loose
Sale price¥6,980
Bicolor sapphire 0.190ct loose
Sale price¥6,980
Mexican Hyalite Opal 98.026ct rough stone
Sale price¥19,800
Mexican Hyalite Opal 63.479ct rough stone
Sale price¥19,800
Mexican Hyalite Opal 44.148ct rough stone
Sale price¥19,800
Mexican Hyalite Opal 32.877ct rough stone
Sale price¥19,800
Mexican Hyalite Opal 25.298ct rough stone
Sale price¥19,800
Mexican Hyalite Opal 13.614ct rough stone
Sale price¥15,800
Rough Diamond (Makeable) 0.941ct Rough (VS Equivalent/Trigon)
Sale price¥198,000
Rough diamond (sawable) 0.890ct rough stone (VS equivalent/GI color)
Sale price¥158,000
Australian black opal 2.122ct loose
Sale price¥24,800
Mexican fire opal 4.342ct loose
Sale price¥19,800
Montana Sapphire (from Yogo) 0.675ct rough stone
Sale price¥14,800
Yellow diamond rough stone (makeable) 0.247ct rough stone
Sale price¥22,800
[KEN] Fire opal from Mexico 0.890ct loose
Sale price¥6,980
Mexican cantera opal 15.542ct loose
Sale price¥19,800
Mexican cantera opal 9.422ct loose
Sale price¥29,800
Mexican cantera opal 7.563ct loose
Sale price¥19,800
Australian boulder opal 1.730ct loose
Sale price¥9,800
Australian boulder opal 6.980ct loose
Sale price¥7,980
[KEN] Fire Opal 7mm/1.030ct loose
Sale price¥39,800
Purple Diamond 0.070ct Loose (FANCY VIVID PINK PURPLE, I-1)
Sale price¥188,000
Sri Lankan star sapphire 21.730ct loose
Sale price¥69,800
Australian boulder opal 4.470ct loose
Sale price¥29,800
Yellow opal 17.283ct loose
Sale price¥34,800
[KEN] Fire opal from Mexico 0.929ct loose
Sale price¥12,800
Black Star Sapphire 2.358ct Loose (Bankaccha Sapphire)
Sale price¥8,800
Colombian emerald 0.135ct loose
Sale price¥18,800
[KEN] Fire opal from Mexico 4.5mm/0.244ct 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.