Pi Kappa Sigma was founded in 1894 at Michigan State Normal College however the group merged with Sigma Kappa in 1959.
This pin features a shield with the Greek letters, a lamp of knowledge, and genuine diamond on a field of black enamel surrounded by a border of 20 full pearls. The back of the pin is engraved "Barbara Barksdale, 3-22-43, Alpha Omicron. The Alpha Omicron Chapter was founded at Madison University in Virginia.
The pin measures 19/32" (15mm) tall and weighs in at 2.4 grams.
I guarantee this badge to be 10k gold as tested. This item is in wearable condition.