Heavy necklace with large rock crystal balls

Heavy necklace with large natural rock crystal balls; end of the 20th century; inclusions are clearly visible; the balls range in size from 1.8 to 2.5 cm in diameter; the stones are individually knotted; with magnetic clasp; on a few balls the glass is somewhat cracked, but everything is still present (Ssiehe photos), partly scratched; traces according to age and use; measurements: approx. 49 cm long - weight: 244 g