Edwardian Platinum on 18K Gold Diamond and Ruby Ring Stunning Edwardian ring with 35 diamonds and 20 small channel set rubies. The bezel set center diamond is approximately .20 carat with 34 prong set diamonds around the border. Approximately .65 carats. The ring tests platinum and there is an accent of 18K on the top and the back is 18K yellow gold. Circa: 1910 Art, Art Deco, Vintage, 18k Gold, Ruby Ring, Edwardian Ring, Gold Diamond, Ring, Fine Rings