Circa 2000s, 18k, by Spark Creations, New York. These sleek contemporary studs are set with .50 carats of vivid cornflower blue sapphire surrounded by .20 carats of sparkling white diamonds (G color and VS clarity). Dimensional and luminous, the look is all color and dazzle. Well-made in eighteen-karat white gold, they sit comfortably on the ear. Spark Creations is renowned for superior fabrication and their use of only the best materials. Excellent condition.