Original Edwardian Filigree Diamonds Sapphires Platinum18K Gold Ring. This is a beautiful original edwardian filigree ring with diamonds and sapphires set in platinum with an 18k gold ring shank. There are 6 rose cuts and 1 old mine cut diamond they average I color VS2 clarity. There are 12 caliber cut natural blue gem quality sapphires. Total gem weight .35 carats. Ring Size 6 1/4, Weight 2.3 grams, Face of the ring measures 17mm by 8mm.