Vintage 9ct gold mounted natural blue/green opal pendant. The opal measures 12mm x 9mm and has great blue/green play of colour. Mounted in a 9ct yellow gold pendant mount with rope border. Pendant measures 15mm x 12mm (not including the top ring or bail). No hallmark but testing as 9ct gold. Suspended from a 20″ twisted curb 9ct chain. Gross weight 4.1g.