Park Lane has been in business since 1955, though vintage sites indicate a founding date as early as 1948. They were known for well made, nice pieces.
I love the vintage look of this necklace, with its oversized marquise stones; they add a sense of movement to what could otherwise be a fairly heavy looking piece. Not a huge fan of the lobster clasp so prevalent on costume jewellery pieces today but oh, well. The site shows this modelled with fairly large shoulder duster earrings. Not sure those would be my choice, but they are available if desired.
This sells for USD $979.