The Victoria & Albert Museum
These narrow rings are set with a continuous line of matching, single-color stones. Such rings initially became very fashionable during the 1930s. They were worn either next to or instead of a plain, gold or platinum wedding band. Of course, diamonds were the most popular choice, others were often set with emeralds, rubies or sapphires. One famous lover of such rings was Princess Marina, the Duchess of Kent. On her marriage in 1934 to Prince George, the Duke of Kent (son of George V and Mary of Teck), she selected three - one of rubies, one of diamonds and one of sapphires, the colors of the Union Jack.