Vintage oval sapphire diamond necklace, circa 1970. This 14 karat yellow gold necklace features an oval sapphire at 1.11 carats encircled with 12 round brilliant cut diamonds at .19 carat total weight. The diamonds have SI2-I1 clarity and G color. This necklace has a serpentine chain. The vintage sapphire necklace is appraised at $2,863.