细节
AN UNMOUNTED BLACK OPAL
Weighing 9.88 carats
With certificate 33462 dated 12/3/1999 from the SSEF Swiss Gemmological Institute stating that the black opal is of Australian origin
Weighing 9.88 carats
With certificate 33462 dated 12/3/1999 from the SSEF Swiss Gemmological Institute stating that the black opal is of Australian origin