The question is right, even when the fit is wrong. Trying a piece in the wrong size and still knowing it deserves a second look is a sharper instinct than most shoppers give themselves credit for, and it sits in the same register as The quiet power of a backless dress and A Quietly Confident Approach to Halloween Party Dressing: dressing well begins with a feeling about a garment, not a measurement on a label. The hesitation is understandable. A size too big distorts the line, drops the shoulder, blurs the waist, and suddenly the mirror is answering a different question than the one being asked. What she is really weighing is whether the piece would be flattering in her size, and that is a fair thing to wonder when the only evidence is a garment that was never meant for her frame.
Order it. The uncertainty is not a reason to walk away, because it cannot be resolved in a fitting room that does not have her size. The online listing shows the piece as it is meant to sit, and that is the closest thing to an honest preview available. What the too-big try-on reveals is the fabric, the weight, the finish, the way the colour behaves in daylight. Those are the things a product photo cannot tell you, and they are already answered. The remaining question, whether the cut flatters, is precisely the one a return policy exists to settle.
There is a quiet discipline in this kind of decision. It asks for patience with the process rather than a verdict in the moment, and it trusts that a considered purchase can be corrected. The practical consequence is simple: order the correct size, try it on in the conditions it was designed for, and let the return window do the work a missing size could not. Keep the packaging until the answer is clear. If it flatters, the wait was worth it. If it does not, nothing is lost but a little time, and the instinct that flagged the piece in the first place gets sharper for next time.
The detail worth watching is the gap between what a store can show and what a shopper needs to see. Until that closes, the fitting room will keep asking questions it cannot answer, and the customer will keep having to answer them at home.