Have a 14kt ring set wedding with a center maquies stone with six accent diamond at 10 points each and 20 at 5 pionts each 1/2 to 1 carat tcw.
With marks inside of ring SD in a superman looking formation and a C in a circle
What do they mean? What's it worth?

have a 14kt ring set wedding with a center maquies stone with six accent diamond at 10 points each and 20 at 5 pionts each 1/2 to 1 carat tcw.
with marks inside of ring SD in a superman looking formation and a C in a circle
what do they mean? whats it worth?

The SD is a makers mark, the circle C means the design is copyrighted. The value would vary depending upon the quality of the diamonds and the weight (size) of the center stone.