Top Hats & PearlsThey say persistence pays off, and Harvey Rovinsky would agree. For four years, the president of Bernie Robbins Fine Jewelers, with stores in Radnor and Newtown, Pa., and Marlton, Somers Point, and Atlantic City, N.J., has vied for the jewelry sponsorship of the 52nd Annual Century Club Gala hosted by the AtlantiCare Foundation, whose affiliation with AtlantiCare Regional Medical Center in Pomona, N.J., makes it a high-profile event in southeastern New Jersey. “Many of their doctors are our clients,” Rovinsky tells JCK.As the jewelry sponsor, Bernie Robbins provided the grand prize for the raffle: one fabulous piece of pearl ­jewelry worth $5,000. Honora had created a one-of-a-kind 78-inch South Seas Tahitian pearl necklace featuring peacock colors of baroque pearls and 10 full-cut, burnished-set diamonds.Robbins’ team also dressed the evening’s honorees in