Art Deco Antique Ruby 1ct Old Cushion Cut Diamond Target Plaque Engagement RingA wonderful example of an antique target or plaque ring. This ring dates from the 1920s and features a transitional look from Edwardian to Art Deco fashion. The central cushion cut diamond weighs approximately 1. 00ct. It is 5. 5mm in length. Colour and clarity are both assessed in the setting as H VS. There are no inclusions visible to the naked eye or loupe. The surrounding calibre cut rubies form a halo around the diamond and a further halo of old