Art Deco Pendant Query

by ann
(United Kingdim)

Hi i wonder if you could help I have this lovely art deco pendant but I do not know if it is silver with marcasites or white gold with diamonds.


It has a centre square stone that could be pearl but cannot find out anything about it.

It is marked on the back in upper case LDR DPR

It is very pretty and in perfect condition any help would be appreciated

thanks Ann