Centering an oval cabochon turquoise measuring approx. 12.2 x 9.2mm., framed by ten Round Brilliant cut diamonds weighing approx. 1.00ctw., further framed by ten Round brilliant cut diamonds weighing approx. 1.00ctw., alternating with ten Marquise cut diamonds weighing approx. 1.80ctw., fashioned in platinum. Size 5.