Bicolor sapphire 0.615ct loose stone
Sale price¥18,800
Brazilian Alexandrite 0.154ct loose stone
Sale price¥35,800
Brazilian Alexandrite 0.052ct loose stone
Sale price¥13,800
Brazilian Pompon Quartz (Radiated Crystal in Quartz) 7.686ct Loose
Sale price¥15,800
Brazilian Indigolite Tourmaline 6.052ct Loose Stone JTL
Sale price¥158,000
Brazilian Indigolite Tourmaline 1.616ct Loose Stone JTL
Sale price¥69,800
Brazilian Indigolite Tourmaline 1.440ct Loose Stone JTL
Sale price¥39,800
Brazilian bicolor euclase 0.233ct loose stone
Sale price¥24,800
Brazilian bicolor euclase 0.212ct loose stone
Sale price¥15,800
Brazilian bicolor euclase 0.239ct loose stone
Sale price¥18,800
Brazilian bicolor euclase 0.201ct loose stone
Sale price¥22,800
Brazilian bicolor euclase 0.168ct loose stone
Sale price¥25,800
Brazilian bicolor euclase 0.157ct loose stone
Sale price¥14,800
Brazilian bicolor euclase 0.291ct loose stone
Sale price¥15,800
Brazilian Euclase 0.117ct Loose Stone
Sale price¥12,800
Brazilian bicolor euclase 0.572ct loose stone
Sale price¥24,800
Brazilian bicolor euclase 0.286ct loose stone
Sale price¥8,800
Sri Lankan Goethite Topaz 4.992ct Loose Stone
Sale price¥14,800
Green tourmaline 1.190ct loose stone
Sale price¥98,000
Brazilian Alexandrite 0.071ct loose stone
Sale price¥25,800
Tanzanite from Tanzania 1.140ct loose stone
Sale price¥39,800
Tanzanite from Tanzania 0.800ct loose stone
Sale price¥25,800
Umba Sapphire (Tanzania) 0.264ct loose stone
Sale price¥12,800
Umba Sapphire (Tanzania) 0.182ct loose stone
Sale price¥7,980
[Koshu Precious Stones plusthree] Amethyst 4.306ct Loose Stone Patch
Sale price¥25,800
[Koshu Precious Stone Cutting Pluethree] Yellow Beryl 0.880ct Loose
Sale price¥29,800
Chameleon Diamond 0.057ct Loose (FANCY LIGHT GRAY GREEN, SI2)
Sale price¥29,800
Brazilian Alexandrite 0.180ct Loose GIA
Sale price¥55,800
"Yurakucho Marui 2024112" Oregon Sunstone from America 6mm/0.826ct Loose
Sale price¥29,800
Oregon Sunstone from the United States 6mm/0.849ct loose stone
Sale price¥22,800
Oregon Sunstone from the United States 8mm/1.966ct Loose Stone
Sale price¥49,800
Tanzanite from Tanzania 1.577ct loose stone
Sale price¥49,800
Tanzanite from Tanzania 1.162ct loose stone
Sale price¥39,800
Tanzanite from Tanzania 0.767ct loose stone
Sale price¥29,800
Tanzanite from Tanzania 1.243ct loose stone
Sale price¥45,800
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.