10K Yellow Gold Diamond Heart Pendant Necklace (1/4 cttw), 18" Prong-set diamonds transition into a channel setting, creating a design that draws the eye to the stunning heart pendant of this necklace. Rope chain with spring-ring clasp All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. Imported Carat weight listed is the total for all stones.