This lovely necklace is not marked but has been tested and is silver. It is 30.8 grams and the chain is24 inches long. The links are ornate on both sides. The locket is 1 1/4 inches tall not including bale ring or bale, by 7/8 inches wide. It still retains both original glass pieces.In nice condition with some slight denting to the locket at the back. C. 1880 and English.