4 Sterling Silver Pearl Enhancers Great for Enhancing Pearls & Beads. This is a new set of 4 sterling silver pearl enhancers. Great for enhancing pearls and beads. Each has a lock with a hinge that opens and closes with ease. All have a closed loop on the bottom so you can dangle a pearl, charm or any gemstone. All are stamped .925 which is the European equivalent of sterling silver. Each measures approximately 9 x 5 mm (3/8" x 3/16").