Antique 14 Karat White Gold 1920s Ruby Earrings

This pair of 1920s earrings are from my father, Paul’s, original collection. The piece is 14 Karat White Gold. 

The Rubies are 3mm each and are created. Know that created Gemstones have been used in jewelry since 1902. 

The design is 5.5 millimeters square. The threaded post is approximately .75 of a millimeter. The nuts allow a secure closure.