Sz 6 (runs Like 4/5) Matilda Jane Platinum HTF Jewel Ballerina dress

Sz 6 Matilda Jane Platinum HTF Jewel Ballerina dress was - sold to me as EUC, we never wore and it's been stored folded on a shelf in the armoire. It fits more like a 4/5 to be honest. I purchased this back in 2019 and forgot all about it and it will not fit my daughter now. I'm going to call it GUC+ or better to be safe for not first owner and because it looks like there is a super faint little mark on the bodice (see my closeup). It's really not noticeable. Also maybe the faintest bit of wash wear/lint to navy blue skirt fabric? We've had this in smaller sizes as well and it has the sweetest fit and twirl! Platinum is no longer made which makes this even more special and there aren't many still in circulation in this size. Made in the USA!