Coober Pedy (SA) opal and Tennant Creek gold nugget! Orange , red and green with a little blue in this 'free-form' shaped opal size 5 x 15 mm, opal weight is 1.3 ct and the nugget weight is .37 gram. The setting is 18kt yellow gold and has a total length of 22mm. Matches the earrings J9179!