Intricate sterling silver links with a sun design and open center encircle your neck and lead to a central sterling silver panel set in the center with a half-moon piece of onyx. Very 1920s, yet quite modern. Unsigned, but tests sterling. Excellent condition with the original patina. The central piece measures 1" x 1". The links measure 1/2" x 1/4". The necklace measures 14" - choker length.