The antique stick pin was tested with nitric acid and a "kee" tester to be 14k solid gold. It weighs 3.5 grams and is 3" long. The ball at the top is 10.75 mm. It has blue enamel with no chips and natural pearls. The fitted casket box reads, " j.j.Durrant Goldsmith Jeweller 40. Cheapside London.". The piece is in very nice condition and is of the Victorian era.