Ralph Lauren Black Label, briefly: it is a house signature that has been redrawn several times, and most of what people recognise is the proportion rather than the mark itself. Recognition is built by repetition over decades, which is why an imitation of the mark never carries the same weight. The short version usually matters less than how the thing is used now. Check where the waist seam sits on the model against your own proportions. The groups below run from the decision that matters most to the ones you make afterwards.

What decides this is shoulder fit, length and how the fabric moves. Everything else is preference. Two from the first group show the range: Dissh's ELSIE BLACK MODAL ASYM MAXI DRESS at $164, and VRG GRL's Behati Maxi Dress Black at $73. The first is the considered buy; the second is the one to start with. Lining is what stops a cheap fabric reading as cheap. A dress that fits the shoulders can be taken in anywhere else. One that does not, cannot. A higher price mostly buys materials and finishing, and occasionally it buys nothing at all.

Let the dress be the loudest thing you own that day. A belt turns a shapeless dress into a deliberate one. From the second group, jwpei.com's Front V-Neck Pleated Midi Dress - White ($199) is the one that earns its place, because it works in more than one context without being restyled. The third group is smaller and deliberately narrower, dresses, for the decisions you make after the main one. None of this needs the whole group. One piece from each is usually enough.

There are 20 pieces here from 15 brands, $30 to $540, all in stock when this was written. We would not buy all of them, and neither should you. nobodyschild.com's Floral Halter Neck Lyne Midi Dress at $30 is the low-risk way in, and nanajacqueline.com's Aurora Halter White Dress at $540 only makes sense if this is a category you already use constantly. On ralph lauren black label specifically: the difference between the top and the bottom of this list is real but smaller than the price gap suggests. Nothing here is included because it is famous, and price is not used as a proxy for quality anywhere on this page. If you take one thing away: one considered purchase beats three hedged ones.