Antique/Vintage/Art Deco Yellow and White Gold Sapphire and Diamond Ring

1 Sapphire, dimensions: 4.6mm, weight: 0.50ct
2 old cut diamonds, 1 @ 4mm, 1 @ 3.6mm, total weight: 0.42ct

Ring height: 4.3mm, weight: 2.6 grams, size: O 1/2