In light opal blue, this strapless long sequin prom dress is worthy of a crown. Super sparkly from the sweetheart neckline to the hem, this long sequin evening gown has a ruched bodice that wraps around to the corset detail that laces up for a comfy fit. Ruching at the hip gives the long sequin formal dress a fitted look, while a thigh-high side slit offers a sexy vibe for prom, galas, and other fancy events. Offered in misses and some plus sizes, this curve-hugging long blue sequin prom dress is priced under $250 so that you can get an upscale style without hurting your wallet.