New OC, Diamond Beat or just Diamond.
she is old friend of AJ's, she moved Canterlot when she trend 10.
she is well know to all as the fashion designer, know only Diamond Beat.
she also designed The Wonderbolts out fits ~

Species: Unicorn
Eyes: purple
Mane: Litght green, pink, ice blue striped
Coat: brownish cream
Cutie mark: shoting Stare/Diamond
Sex: Female
Crush: Pinkie Pie

that is all