Radiant midcentury gold filled necklace signed Adorna

This great vintage piece feature a 1-3/8" lavalier style pendant hanging from a 16" chain. It's signed Adorna (in script) GF with maker's marks - but despite the distinctiveness of the signature and the striking design (I've found more like it online), I've turned up little about the company, other than it appears to have been active in the 40s and 50s. The necklace is in great condition, with the glass stones well set and the clasp secure. There is a bit of wear on the finish, but only on the back of the flower.