The mark consists of two concentric blue circles set against a white background with "Saint Ann's School" centered at the bottom; the outer circle forms a girded belt with, from left to right, "SAINT ANN'S SCHOOL" wrapped around the upper semi-circle, two bullet points, each on the left and right, and, from left to right, "MCMLXV" (1965) and "MCMLXXXI" (1981) wrapped around the lower semi-circle; the inner circle contains, at top, a crown in the center flanked by two crescents, an Athenian drachma in the middle (an olive branch to the left of the owl, the owl of Athena, and "AOE" (alpha, theta, epsilon) displayed vertically to the right of the owl), and, at bottom, from left to right, "Altiora Peto" (I seek higher things) layered on top of a decorative ribbon flag and wrapped around the semi-circle.
The color(s) blue and white is/are claimed as a feature of the mark.