Sterling Silver Pearl Enhancer Great for Enhancing Pearls & Beads. This is a new sterling silver pearl enhancer. Great for enhancing pearls and beads. Has a lock with a hinge that opens and closes with ease. It has a closed loop on the bottom so you can dangle a pearl, charm or any gemstone. It is stamped .925 which is the European equivalent of sterling silver. It measures approximately 9 x 5 mm (3/8" x 3/16").