In 1920 this design was officially adopted as our pledge pin. The earliest badge design was what is now used as our pledge pin. Jeweled badges were approved at the 1915 convention when the pearl was adopted as our national jewel.
Unjeweled badges have a scroll edge.
The alumna pin was adopted in 1978. It is a small triangle pin of maroon enamel with Sigma Kappa etched in gold. It is worn as a lapel pin by alumnae who have participated in the Order of the Triangle ceremony. Pin A gold circle pin etched with Sigma Kappa is given to fifty-year members. It is worn encircling the triangle badge.