A Platinum, Diamond and Cultured Pearl Bar Pin, containing one oval pearl measuring approximately 9.43 mm in diameter post set on an openwork floral motif cut above an elongated bar base with millegrain edgework containing 40 old single cut diamonds weighing approximately 0.40 carat total, intricate safety.Stamp: 076790 (partially obscured).Accompanied by a Gemological Institute of America pearl identification certificate number 2165657652, dated October 2, 2014, stating Pearls: Bead Cultured, Environment: Saltwater, Species: Pinctada fucata (Akoya), Shape: Near Round. 4.05 dwts.