Ladies 14kt Yellow Gold Black Onyx, Diamond and Mosaic Opal Necklace Circa 1950s

Ladies 14kt Yellow Gold Retro-Modern Reversible Pendant From The 1950s. One Side Features A 47.75 X 35.00mm Oval Onyx With 17 Round Diamonds Totaling 0.20Cttw (G–H Color, Si1 Clarity) In An Ornate Design; The Reverse Displays Vibrant Mosaic Opals. Suspended From A 16" Chain.