1.37 Oval Green Sapphire Engagement Ring 14k Yellow GoldThis 14 karat yellow gold solitaire engagement ring features a 1. 37 carat oval cut sapphire in a green blue color held by a four prong setting. The oval cut elongates the stone's appearance and creates a larger face area than a round stone of the same carat weight, while its faceting produces flashes of color that shift as the stone moves. A double bezel accent frames the sapphire, adding a layered look to the head of the ring. The cathedral gallery