round cut engagement ring Petite Cathedral Solitaire Moissanite Engagement Ring $1,000 Crown Solitaire Moissanite Engagement Ring $1,040 Hand Engraved Solitaire Moissanite Engagement Ring $1,100 Lucida Wide Band Solitaire Moissanite Engagement Ring $1,270 Round Cut Solitaire Moissanite Engagement Ring $1,140 4 CT Six Prong Round Brilliant Solitaire Engagement Ring $2,750 Six Prong Round Brilliant Solitaire Engagement Ring $1,020