Edwardian Diamond Choker Necklace

Measuring approx. 13 7/8 inch long, set with twenty-four Old European cut diamonds weighing approx. 2.16ctw., fifteen Round Brilliant cut diamonds weighing approx. 0.30ctw., ten Single cut diamonds weighing approx. 0.20ctw., and two hundred Rose cut diamonds ranging from approx. 1-1.5mm.,  fashioned in platinum.