Vintage 14k Gold 50pt - 1/2ct Princess Cut Diamond Solitaire Engagement / Promise / Commitment Ring

One lady's 14k white gold and diamond solitaire ring. Set with:
One princess cut diamond, measuring approx., 4.40-4.30mm., 
(depth is estimated due to the mounting) 
weighing approx., 0.50ct., 
by gauge of VS-1 clarity, G color, very good cut.
Weighs 2.5 grams, 
Ring size 2 3/4, 
stamped 14k., and trademarked.