Black jade has properties that offer protection from negativity and foster the wise use of power, elevating these earrings beyond the basic studs. These rare African black jade stones are the only black jade with the hardness and luster to be faceted like a diamond! Round-cut 6 mm natural stones totaling 5 ct are set in a classic four prong-style sterling silver metal. Pieces measure 5/16 by 5/16 inches.