Burmese Sapphire Ring and Oval-Cut Emerald Necklace Highlight Alex Cooper Auctioneers Sale

Emerald mining began around 1500 BCE in Egypt. While other precious stones often have a variety of colors, emeralds are available only in green. The stone gets its hue from traces of chromium or vanadium. A 140-carat emerald necklace is a key highlight in the upcoming Alex Cooper Auctioneers sale. The handmade necklace features graduated oval-cut emeralds. It has a 14-karat gold box clasp studded with baguette diamonds. Another leading necklace is from the estate of heiress and philanthropist Linda McRae Noe Laine of Washington, DC. The necklace features a combination of oval and round carved carnelian links and diamonds, together weighing approximately 4.50 carats. 

A 5.26-carat unheated Burmese sapphire set in a platinum ring is also on offer. Unlike treated sapphires, which are more commonly found, this unheated piece likely comes from the Mogok Stone Tract of Myanmar. A double-prong mounting holds the oval-cut gemstone. To view the complete catalog and register to bid online, visit Bidsquare.