From James Avery, these ear posts feature:  Delicate sterling silver hearts are set with layered ruby and mother-of-pearl gemstones, adding a hint of red to any look. These James Avery earrings pair beautifully with the Sweetheart Gemstone Necklace or Ring. Hoop earrings Sterling silver Approx. 6.4mm x 6.4mm x 2.75mm lab-created ruby and mother-of-pearl doublet Post closure These stones have been layered to achieve a unique color and enhanced surface durability Avoid chemicals, cosmetics, and ultrasonic cleaners as well as contact with water, soap, steam, and extreme humidity Approx. 0.9375" long Crafted in America using the world's finest materials.