Gold filled w cultured pearl swirled circles brooch pin 1/20 12k gf signed HG vintage ll3333

This lovely brooch is a swirl of 7 circles in the center of which is a single cultured pearl. It is 1/20 12Karat gold filled and is signed H G.for Henry Griffiths. It has a safety clasp on the back. The pearl is set in Tiffany style prong setting and has a warm luster. Probably from the 1960s. The pin is 1.25 inches in diameter and in perfect condition.