Goshenite 0.306ct loose stone
Sale price¥6,980
Tanzanian Kornerupine 0.453ct loose stone
Sale price¥24,800
Paraiba Tourmaline from Mozambique 0.248ct loose stone
Sale price¥12,800
Paraiba Tourmaline from Mozambique 0.223ct loose stone
Sale price¥12,800
Tanzanian Kornerupine 0.416ct loose stone
Sale price¥8,800
Nigerian Aventurine Aquamarine 0.471ct Loose Stone
Sale price¥8,800
Unheated Padparadscha Sapphire from Madagascar 0.250ct Loose
Sale price¥55,800
Unheated Padparadscha Sapphire from Madagascar 0.150ct Loose
Sale price¥39,800
Unheated Padparadscha Sapphire from Madagascar 0.150ct Loose GIA
Sale price¥35,800
Violet Sapphire 4.3mm/0.328ct Loose
Sale price¥15,800
Pink sapphire 4.5mm/0.390ct loose stone
Sale price¥15,800
Purple sapphire 4mm/0.273ct loose stone
Sale price¥12,800
Yellow Sapphire 4.0mm/0.266ct Loose
Sale price¥12,800
Golden sapphire 0.269ct loose stone
Sale price¥16,800
Pink sapphire 0.271ct loose stone
Sale price¥8,800
Tanzania Purple Zoisite 0.197ct Loose Stone
Sale price¥15,800
Afghanistan Hackmanite 0.190ct loose stone
Sale price¥11,800
Madagascar Pezzottaite 4mm/0.217ct loose stone
Sale price¥7,980
Montana Sapphire 0.405ct Loose (Green Sapphire)
Sale price¥9,800
Montana Sapphire 0.331ct Loose (Bi-Color Sapphire)
Sale price¥8,800
Montana Sapphire 0.228ct Loose (Yellow Sapphire)
Sale price¥7,980
Russian diamond rough (sawable) 0.094ct rough
Sale price¥24,800
Colombian oil-free emerald 0.060ct loose stone GIA
Sale price¥65,800
Bicolor Euclase from Zimbabwe 0.033ct loose
Sale price¥28,800
Colombian Trapiche Emerald 0.291ct Loose
Sale price¥15,800
Colombian Mica in Emerald 4.6mm/0.210ct Loose Stone
Sale price¥12,800
Colombian Trapiche Emerald 0.147ct Loose
Sale price¥9,800
Colombian mint color emerald 0.178ct loose stone
Sale price¥6,980
Colombian Trapiche Emerald 0.416ct Loose
Sale price¥22,800
Colombian mint color emerald 0.198ct loose stone
Sale price¥6,980
Russian Diamond Rough (Sawable) 0.105ct Loose (Trigon)
Sale price¥28,800
Colombian Trapiche Emerald 0.266ct Loose
Sale price¥14,800
Detroit City Rhodochrosite 4mm/0.439ct Loose Stone
Sale price¥8,800
Montana Sapphire 0.244ct Loose (Bi-Color Sapphire)
Sale price¥8,800
Montana Sapphire 0.325ct Loose (Orange Sapphire)
Sale price¥8,800
Montana Sapphire 0.261ct Loose (Green Sapphire)
Sale price¥8,800
Montana Sapphire 0.294ct Loose (Green Sapphire)
Sale price¥9,800
Montana Sapphire 0.270ct Loose (Blue Sapphire)
Sale price¥9,800
Brazilian Paraiba Tourmaline 0.200ct loose stone (CuO: 1.7%, MnO: 2.8%)
Sale price¥98,000
Salt and pepper diamond 0.369ct loose
Sale price¥39,800
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.