Silver bracelet with five amethysts

Antique hard bracelet made of 925 silver (sample knocked out), and most likely with five oval natural amethysts (testing was not carried out), the Central stone is slightly larger than the others, one of the stones is lighter, and perhaps it is colored crystal (?), since it looks more sparkling and transparent than the rest of the stones. All the stones are fixed firmly in a blind frame, some irregularities in the frame indicate that the stones are inserted manually. The bracelet has a noble patina inherent in ancient silver products, and is in very good condition, on a narrow and medium wrist.