Vintage Lady's 14k Gold 0.74ct ( 3/4ct ) Diamond Engagement / Promise / Commitment Ring

One lady's 14k yellow gold and white gold diamond engagement ring set with:

one brilliant brilliant cut diamond measuring approx., 5mm.,
weighing approx., 0.50ct.,by gauge of
SI-1 clarity, 
G-H color, 
Fair cut.

Eight row set round brilliant cut diamonds measuring approx.,2.2-1.6mm.,
weighing approx. total 0.24ct.,

Weigh 2.5g
Stamped 14k., and trademarked.
Size 5 1/4