Jewelry Trends Sterling Silver Crescent Moon and Star Stud Post Earrings with Blue Topaz Metal: .925 Sterling Silver Stone: Topaz; Color: Blue; Approximate Stone measurements: 2.5 mm Approximate Earring dimensions: 9.8 mm wide x 14.4 mm long x 2.5 mm deep; Clasp: Butterfly This beautiful affordable Sterling Silver Jewelry makes a great holiday or birthday gift for your family and friends. Complimentary gift box included