This sterling silver heart pendant features a 8-8.50-mm. white cultured freshwater pearl with 0.07 ct. t.w. diamond accent and measures 23.30-mm. in length and 12.50-mm. in width on an 18-in. chain. Prong setting 1 White Cultured Freshwater Pearl and 18 Diamonds Imported Care Do not use ultrasonic cleaner. Avoid contact with cosmetics, hairspray, perfume or household chemicals. Clean with a damp cloth or soft brush.