Sterling Silver Black Enamel Butterfly Diamond Pendant Necklace (1/10 cttw, I-J Color, I2-I3 Clarity), 18" Amazon Curated Collection. Save 55 Off!. $80.00. Made In India. 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 .05 carats.