Antique Coral Colored Celluloid Rose Pendant Necklace with Coral Enamel Sterling

Pictured is a vintage possibly antique coral colored celluloid flower necklace in a sterling setting. The flower is 19mm x 8'' tall in a 1" setting. The bale is decorated with coral colored enamel. The chain totals 15 1/2" and piece weighs 5.8 grams. I was told the flower is coral. The flower appears to be coated with a clear protectant.