A large opal yellow diamond ruby and diamond figural bug pendant/brooch, set with large cabochon

A large opal "yellow" diamond ruby and diamond figural bug pendant/brooch, set with large cabochon opal, old-cut and rose-cut diamond wings and body with cabochon ruby eyes, in unmarked gold settings, wingspan 46.4mm, 10.2gGood overall condition, three stones missing, opal has a good play of colour with mostly greens and blues and light surface abrasions, most diamonds have small surface chips and abrasions which are only visible through loupe, coloured diamonds have a slightly greenish tint and unsure if they are naturally coloured or treated, settings are lightly abraded all over, brooch fitting working, unmarked