TIBI pure silk big flower dress tie waist midi mismarked size -fits like large

Pure silk incredible floral midi dress w tie waist Marked 6 cannot be?? Please use measurements. Large seems accurate. 32” waist doubled at band 6• arm opening (1/2 or 3/4 length) 42” bust pit to pit doubled 44” hips doubled 46” length Condition: lovely, very light use. I wasn’t sure if elastic was stretched at waist and arms because was bigger than marked size But elastic is firm and intact. I believe elastic is just designed loose. Still think dress better for a medium 10 minimal. It was way too big on me as a 6 US