A seven-tier stackable ring that uses champagne-colored diamonds to represent all-beef patties, tsavorites to depict the lettuce and pickles, and orange sapphires to illustrate the special sauce is the scintillating prize in McDonald's romantic "Bling Mac Ring" competition. Valued at $12,500, the fanciful ring by New York-based designer Nadine Ghosn will be awarded to the […]