Incredible Peruvian Blue Opal and Matrix plain oval nugget beads have a slightly asymmetrical shape with wonderful thickness of 8mm creating a hefty group of expertly matched beads showing a consistent linear matrix flowing throughout the strand of opaque beads. These gems have a waxy opal luster with a smooth appearance and present a deeply saturated turquoise blue and chocolate brown coloring for the best of the best Peruvian Opal. AA grade