This terrific set includes an orange flower brooch that is what I believe to be celluloid as the front petals with the rear petals being a pearly, almost clear lucite. The brooch as a 2 1/4" diameter. I believe the earrings are thermoset, and have wonderful flowers on the front. They measure 1 1/2" x 1 1/4". There is a bit of minor age-related discoloration on the back of the earrings, but otherwise all 3 pieces are in excellent condition.