Dress: Cary Dress by Alice + Olivia (Thanks Karishma via Arrowfashionblog and Celina!)
Felicity Smoak (played by Emily Bett Rickards) on Arrow on The CW was spotted wearing this daisy print dress on Arrow on episode 'The Sin-Eater' (5x14) in Feb 2017. Felicity's Dress is the Cary Dress by Alice + Olivia .