- 14K White 5.8 mm Round Solitaire Engagement Ring Mounting with 0.74 Carat Round Diamondstyle 12401814K White 5x5 mm Square Solitaire Engagement Ring Mounting with 0.22 Carat Asscher Diamondstyle 124046Trellis Princess Solitaire Diamond Engagement Ring - Heart - 14K White Gold with 0.34 Carat Cushion Diamondstyle 124088