Sterling Silver Micro Cluster Diamond Heart Pendant Necklace (1/10 cttw, H-I Color, I2-I3 Clarity), 18" A small cluster of diamond rounds is nestled at the center of this sterling silver heart pendant, which dangles from an elegant box chain. Crafted in .925 sterling silver Imported Single cut diamond All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. Carat weight listed is the total for all stones.