Ruby and zircon pendant and chain necklace in sterling silver

This pendant and chain are both in excellent pre owned condition showing little to no signs of wear. Chain is not original to the pendant .  Natural ruby stone that appears to be filled and treated. Surrounded by white zircon accent stones. Prong set in rhodium and gold plated over sterling silver for a two toned finish. Singapore chain measures 18 inches with two inch extension. Chain is stamped BBJ 925 and not original to the pendant , but a better quality. Pendant is stamped 925 STS , possibly Chuck Clemency designer.