Conch pearl (with flame pattern) 0.387ct loose
Sale price¥39,800
Benitoite 2.2mm/0.229ct loose
Sale price¥57,800
Benitoite 1.8mm/0.113ct loose
Sale price¥28,800
Brazilian Lazurite (Celestite) 0.281ct Ruth Japanese-German Edition
Sale price¥118,000
Bekily Blue Garnet from Madagascar (color change garnet) 0.297ct loose
Sale price¥19,800
Bicolor Zircon 0.468ct Ruth Japanese-German Dictionary
Sale price¥25,800
Yellow diamond 0.212ct loose (FANCY DEEP ORANGY YELLOW, VS1)
Sale price¥45,800
Yellow diamond 0.291ct loose (FANCY INTENSE ORANGY YELLOW, SI2)
Sale price¥64,800
Yellow diamond 0.153ct loose (FANCY INTENSE YELLOW ORANGE, SI1)
Sale price¥38,800
Yellow diamond 0.188ct loose (FANCY INTENSE YELLOW, VS1)
Sale price¥47,800
Yellow diamond 0.245ct loose (FANCY INTENSE ORANGY YELLOW, SI1)
Sale price¥55,800
Colombian trapiche emerald (reverse trapiche) 3.6mm/0.168ct rough stone
Sale price¥19,800
Colombian trapiche emerald (reverse trapiche) 0.135ct rough stone
Sale price¥14,800
Colombian trapiche emerald (reverse trapiche) 3.4mm/0.132ct rough stone
Sale price¥14,800
Colombian trapiche emerald (reverse trapiche) 0.131ct rough stone
Sale price¥14,800
Mangano tantalite from Afghanistan 0.233ct loose
Sale price¥39,800
Sphene from Madagascar 0.498ct loose
Sale price¥9,800
Cobalt Garnite 0.155ct loose (sugar loaf cut)
Sale price¥12,800
American red beryl 0.143ct loose
Sale price¥17,800
American red beryl 0.115ct loose
Sale price¥13,800
American red beryl 0.208ct loose
Sale price¥25,800
American red beryl 0.141ct loose
Sale price¥16,800
American red beryl 0.136ct loose
Sale price¥16,800
American red beryl 0.133ct loose
Sale price¥15,800
American red beryl 0.133ct loose
Sale price¥15,800
American red beryl 0.108ct loose
Sale price¥13,800
Diamond 0.120ct loose (G, VS2, Excellent H&C)
Sale price¥28,800
Diamond 0.126ct loose (F, VS2, octagonal cut)
Sale price¥25,800
Cambodian Blue Zircon 0.205ct Loose
Sale price¥4,980
Cambodian Blue Zircon 0.204ct Loose
Sale price¥4,980
Cambodian Blue Zircon 0.221ct Loose
Sale price¥4,980
Synthetic moissanite 0.372ct loose
Sale price¥9,800
Sphene from Madagascar 0.494ct loose
Sale price¥6,980
Paraiba tourmaline from Brazil 0.264ct loose
Sale price¥19,800
Paraiba tourmaline from Brazil 3.5mm/0.278ct loose
Sale price¥18,800
Paraiba tourmaline from Brazil 4.1mm/0.240ct loose
Sale price¥14,800
Paraiba tourmaline from Brazil 0.243ct loose
Sale price¥14,800
Paraiba tourmaline from Brazil 0.254ct loose
Sale price¥16,800
Paraiba tourmaline from Brazil 0.179ct loose
Sale price¥14,800
Paraiba tourmaline from Brazil 3.5mm/0.194ct loose
Sale price¥14,800
Paraiba tourmaline from Brazil 3.3mm/0.169ct loose
Sale price¥9,800
Paraiba tourmaline from Brazil 3.3mm/0.161ct loose
Sale price¥9,800
Paraiba tourmaline from Mozambique 0.270ct loose
Sale price¥21,800
American benitoite 0.147ct loose
Sale price¥42,800
American benitoite 0.173ct loose
Sale price¥45,800
American benitoite 0.114ct loose
Sale price¥32,800

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.