Kappa Sigma Fraternity Badge 10k Gold Seed Pearl Ruby Emerald Skull Star Guard

Pre-owned. Vintage pin in great condition. Has seed pearls, rubies, emeralds, and a clear stone (Probably diamond). No stones missing. The surface of the stones and pearls looks great. No cracks in the enamel. The stone colors are clear, pink, and green. Is stamped 10K gold. The metal is bronze looking in color. It is engraved with C.S. 9/26/69. Not sure if that's the year it was made or a birthday. The pin backs are fluid and working. Measures 2.75" long end to end with the hanging portion. See photos. I believe the hanging letters are Theta Upsilon based on using a greek letter chart. The letters on the main badge are Kappa Sigma.