.53 Round Brilliant Cut Diamond Sapphire Ring in Platinum. This sapphire and diamond ring has personality and timeless beauty! The center stone is a .53 carat Round Brilliant cut diamond. The diamond is bright and sparkling, set in a bezel mounting with milgrain details. Fourteen (14) .041 carat French cut blue sapphires halo the center stone. The sapphires are bezel set in a platinum mounting. For added brilliance, ten (10) .012 carat Round Brilliant accent diamonds line the shoulders of the band.