Art Deco Ruby & Diamond Pendant Necklace

Centering an oval cabochon ruby measuring approx. 8 x 6.5 mm., topped with an Old European cut diamond weighing approx. 0.15ct., additionally set with Single cut diamonds weighing approx. 0.65ctw., additionally set with two Baguette cut diamonds weighing approx. 0.16ctw., fashioned in platinum. Length 18 5/8 inches.