This three-stone engagement ring centers a 2.43 carat emerald cut blue sapphire flanked by two trilliant cut diamonds, each weighing .285 carats, set in platinum. The prong setting secures the emerald cut sapphire while allowing maximum light to enter and highlight the stone's deep blue color and geometric faceting. The triangular trilliant diamonds provide .57 total carat weight and create strong visual contrast against the rectangular center stone.