Triple Layer Sapphire & Diamond Necklace 18k Yellow GoldThis modern pendant necklace is made from 18 karat yellow gold and features a triple layered design with three bezel set stones. A . 52 carat round cut blue sapphire sits at the center, flanked by two round brilliant cut diamonds totaling . 42 carats. The layered arrangement staggers the stones at different heights, so they catch light independently as the pendant moves. Round brilliant cuts on the diamonds maximize sparkle, which contrasts nicely