Vintage Opal Ribbon Motif Brooch with Sapphires and Emeralds

This vintage opal ribbon motif brooch features a 5.73-carat opal edged with calibre-cut sapphires and emeralds and accented with pavé-set round brilliant diamonds. Set in platinum.
Sapphires total 6.75 carats.
Emeralds total 2.31 carats.
Diamonds total 1.18 carats.