Heather Needham, Silver Heart Stud Earrings Paua Abalone Shell - Size: 5mm Beautiful little pair of sterling silver Heart Stud Earrings with Paua abalone shell insert. Heart shaped Sterling Silver Earrings with blue, turquoise, green shell insert. Make a wonderful 17th shell wedding anniversary / Valentine's Day / friendship gift. Supplied in presentation box. Size (approx):5mm