C. 1990. Take flight with this symbol of freedom and divine connection. From our Estate collection, this artistic bird pin/pendant features … C. 1990. Take flight with this symbol of freedom and divine connection. From our Estate collection, this artistic bird pin/pendant features a single sapphire eye, vivid green chalcedony wings, a mother-of-pearl body and sparkling .18 ct. t.w. diamond details. Finely crafted in polished 18kt white gold. Concealed bail fits up to a 6mm chain, sold separately. Push-pull safety. Diamond, green chalcedony and mother-of-pearl bird pin/pendant. Exclusive, one-of-a-kind Estate Jewelry.