lavender short prom dress Off Shoulder A-Line Homecoming Cocktail by LaDivine CD0194 Professional dry clean only to protect the delicate tulle layers and sleeve attachments A line Lavender Tulle Lace

(* = some plus sizes also, = petites) Lowest price (under $150 for a suit): Some of the stores you frequented as a teenager do have a surprising number of lower-priced suiting options, such as Express but while they may be more affordable, the quality may be lesser (and the cuts a bit more sexy) than the sometimes frumpier brands you can find at a sales rack at Nordstrom Rack or T.J.Maxx, such as Kasper or Le Suit

After trying about 10 other dresses from other companies, I was very relieved to find this brand

- chest in 92 cm / 36"

The dress is also available in a short sleeve here

Its not formal but certainly not casual making the risk of doing too much or too little pretty high

the skirt, about $23