This stunning necklace features a magnificent 51.47 carat emerald-cut aquamarine with extraordinary blue color! The gem is surrounded by fine diamonds in an original pendant that is beautiful from every angle. The aquamarine is a perfectly proportioned "modified brilliant cut," with a rectangular outline and diamond-shaped facets that give this gemstone superior brilliance and life! We set this gorgeous blue gem in 18k yellow gold with double prongs and a custom designed 18k yellow gold basket.