Vintage Diamond & Sapphire Filigree Pin

Set with one Old European cut and one Round Brilliant cut diamond weighing approx. 0.20ctw., additionally set with two Marquise cut sapphires measuring approx. 3.8 x 1.5 mm., fashioned in 18k white gold. Overall dimensions approx. 1 9/16 x 3/4 inch. Stamped "X14K"