Art Deco style ring set with an oval mixed cut emerald, pale to medium green in colour, within a diamond set surround of 10 brilliant cut diamonds separated at the half-way points on either side of the halo by a baguette cut diamond.    The emerald, which measures 6.9mm x 5.0mm x 2.32mm deep, weighs approx 0.60ct.  The total carat weight of the diamonds is approx. 0.31ct with colour and clarity assessed as G/H and SI/VS respectively.  All gemstones in white rub over and beaded settings with millgrain decoration, knife edge shoulders, D shaped cross section band.  Stamped "PLAT" tests as platinum  Gross item weight 3.62gms.  Finger size 6.5 (US/Canada), N (UK/Australia) with some resizing possible.