Mens Gold Ring with a C in a circle and a sun/star

by Cindy P
(Nashua, NH USA)

What is the item? Mens Ruby ring, 14KT and a star after the 14KT.

Can you please provide all background information?
Ring found in an old box at a yard sale. Dont know if its vintage or not.

What are the markings?
A "C" or maybe a moon with a half circle around it with a star/sun next to the C/Moon?

Where are the markings? Inside the ring