Sterling silver amber ring

We’ve made this ring by the lost wax method cast in sterling silver and in the middle we set this lovely Baltic amber cabochon in honey brown color inside a bezel. Next to amber is cutout design in antique style.
The face of the ring is 15mm – 5/8″ inches
In US size 6.5 ,European 54, British N

here is online ring size converter
http://www.onlineconversion.com/ring_size.htm