Delta Zeta:
Motto: No open one, however, our new logo has the tagline "Enriching," which I like. I also really dig our new logo:
Symbol: Roman lamp
Jewel: Diamond
Mascot: Turtle
Colors: Pink and Green. If you want to get technical about it, Old Rose and Vieux Green (could never find these on the CIE*Lab color chart).
Flower: Pink Killarney Rose, which I believe we share with Alpha Xi Delta and I think one other group.