Vintage costume starburst Necklace pendant on chain

This pendant is made with pinky-amethyst colored sparkles and tiny pearls in a starburst pattern with a centre faux-opal. No markings, but it is a really pretty 1 5/8” diameter pendant, 18” chain. The pictures do not capture how pretty this is. I first used my phone with studio lights, then my camera with no additional light and I still could not capture the brightness, subdued with the pearls. The amethysts are much lighter almost a pink, but photographed darker.