Amanda Blu Opal Stud with Three Drop Earrings have a delicate charm with the shimmery sparkle of faux cubic-zirconia diamonds on dangling chains. These 18-kt. plated silver earrings feature blue opals for a glamorous touch to eveningwear or anytime you want to add a bit of bling. Length: 1. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Earrings.