Gorgeous vintage David Yurman ring from the Renaissance Collection.  
It is a sterling cable bypass ring with 14K yellow gold ends that feature a white cultured pearl and 3 sapphire cabochons at each side.
Ring is size 6.
Inside marked "c. D.YURMAN STERLING 14K"  
Weighs 5.05 grams.
Very good estate pre-owned, no box or pouch.