20th century solid silver choker by modernist Swedish designer Rey Urban, who died sadly in 2015.
The choker dates back to I believe the 1960s judging my the hallmark, but please see photos.
Large stone to the center with gold specs.
The silver is showing wear, as can be seen from the photographs, and it would benefit from a silver clean to restore to its original glory.
Silver choker band slightly out of perfect shape, but otherwise ready to wear