14k Yellow Gold Necklace with Natural Emerald White Diamonds Some stones are too beautiful to make twice. We designed our signature Aria frame to celebrate exceptional gemstones, and this one-of-a-kind crest-cut emerald felt like the perfect fit. Surrounded by our signature Starry diamond setting, every diamond draws your eye back to the rich green emerald at its center. This is the only Crest Aria Necklace we'll ever make.