Edwardian / Early Art Deco 2 Ct Diamond Vintage Engagement Ring

The platinum halo ring is centered with a bright white and sparkling old European cut diamond (8.35 x 4.7 mm, approximately 2.07 ct, I color, SI2 clarity) encircled by a row of French cut natural rubies and further set with a border of old cut diamonds. Diameter 18 mm (11/16 in.) Ring size 7 (17 mm)