Nwot Vintage Heart Center Stone With Lab Grown Color Change Purple Blue Alexandrite And 14k White Gold. The Setting Is Vermeil 14k White Gold Over 925 Sterling Silver To Last A Lifetime. * Approx 4 Cttw * 3 Cttw Lab Brown Color Change Alexandrite * 1 Cttw Simulated White Diamonds * 14k White Gold Vermeil Plated * 925 Sterling Silver Hallmark Stamped Measurements Are Approximate