Three oval Louisiana Opal Drop Pendant on an 18″ black leather cord with an adjustable sterling silver clasp. Opals all have plays of Purple, Green and Teal in a medium sandstone base with a dome top cut. They are set in sterling silver with a gold plating . stones measure – 12 x 10mm . 14.5 x 11.5mm . 18.5 x 14.5 mm . LA429 .