TLC new vintage bezel solitaire costume pendant necklace

TLC new vintage bezel solitaire costume pendant necklace Quick list Was in a jumble tangled mess so the chain is not completely kinked but not completely smooth. New vintage c. 1970s-1980s. Artistic Jewellery Canada . Costume silver tone metal. No hallmarks. Rainbows in faceted crystal. Not sure if silverplate or if genuine Austrian crystal. Definitely not a real diamond.