XPY Sterling Silver and 14k Yellow Gold Diamond Winged Halo Heart Pendant Necklace (.04cttw, I-J Color, I2-I3 Clarity), 18" Amazon Curated Collection. $55.00. The total diamond carat weight listed is approximate. Variances may be up to .05 carats.. All our diamond suppliers certify that to their best knowledge their diamonds are not conflict diamonds. Save 63% Off!