― 14k Yellow Gold Princess-Cut Solitaire Engagement Ring (1/4 ct, I-J Color, I1-I2 Clarity), Size 9 is the best choice engagement rings for your engagement. ∙ All our diamond suppliers certify that to their best knowledge their diamonds are not conflict diamonds.The total diamond carat weight listed is approximate. Variances may be up to .03 carats. ∙ Choose a classic, elegant look with this princess-cut diamond solitaire engagement ring. A single princess-cut diamond (1/4 cttw) is [...].