4.5 Carat Designer Diamond Engagement. A Stunning Radiant Diamond - 4 Carat F VS1 Clarity Top Quality - 100% Eye Clean with lots of sparkles, set in a Designer Style Ring along with 0.50 Carat Marquise & Round Diamonds on the shank. Hidden Halo Design with Diamonds on the prongs.This Ring is Certified by a Third Party Gemological institute