The new member pin is referenced in the 1918 Constitution as three deltas surrounding an inverted delta, a symbol of growth. Green is significant as it is the universal color of all growing things. For Tri Delta, the green of the new member pin is also the union of the Fraternity colors (silver, gold, and blue) and represents the beginning of growth of the individual.
This pin consists of three deltas surrounding an inverted delta in green and silver enamel.