This emerald and diamond serpent brooch comes up as lot 85 at the James Adam sale of fine jewellery and watches in Dublin on September 13. The realistically modelled snake with brilliant and single-cut diamond highlights and emerald cabochon eyes, with engraved body and underside is by Zurich based jewellery Meister and was made c1968. The estimate is 4,500-5,500. The auction offers a selection of 243 lots, the catalogue is online and viewing gets underway today in Dublin.