4.18 Carat Blue Round Emerald

This is a 4.18 carat blue emerald cut in a round shape, offered as a loose stone. Emeralds in blue hues are notably uncommon, as the variety typically displays green coloration; blue emeralds may owe their color to trace elements such as iron. No treatment information, origin details, or certification documentation is provided in the listing specifications. The stone is available through Leibish & Co., a dealer specializing in colored gemstones.