Sp528, SOLD, Yowah boulder opal from Australia, set in sterling silver pendant with iolites, rainbow moonstones, spessartite garnets and diamond 62.6 carats opal, 2 carats iolites, 1.4 carat spessartite garnet crystals, .15 carat yellow diamond, .65 carat rainbow moonstones, .20 carat spessartite garnet