Vintage rhinestone jewellery - 4-piece set

Received from my grandmother. She used to wear these when she was younger 💎 Necklace, bracelet, and earrings full set. The earrings have a twist backing (perfect for those with no piercings). These would be fun for a 30s/40s party-themed costume party. In Great condition. Measurements: necklace - 38cm (15 in); bracelet - 17.5cm (7 in); earrings - 3cm (1.2 in). Material: unknown…stainless steel? Sterling silver? Crossposted for $90.