More and more smart shoppers today are opting for high-quality cubic zirconia jewelry over pricier diamonds or other expensive gems. For those unfamiliar with “CZs,” they may not realize that quality cubic zirconia rings are almost indistinguishable from the pricier options. Even experts need to pull out the “loupe” to truly tell the difference. This is perhaps one big reason that wealthy socialites and celebrities frequently opt for “CZs,” especially…