Price on a resale site is not a measure of quality. It is a measure of how many people have already sold the same thing. A garment with hundreds of completed listings behind it has a floor, because every seller can see what the last one made and nobody lists below it without a reason.
A garment without that history has nothing holding it up. The number ends up wherever the seller guessed, and sellers guess low when they want the thing gone. That is the condition all six of these listings share. Some lack precedent because of an awkward size, some because the label sells strongly at retail and quietly on the secondary market, some because the category itself gets less search traffic than the brand behind it deserves.
The skill worth having is telling that apart from a price that is low for something on the garment. Nothing here is marked down for condition or age. These are pieces whose comparables have not been written yet.
1
Kiton
Kiton Napoli navy stripe 3 button suit jacket 41R
$84
vs $5,500 retail
98% below
A 41R is the size that slips through: too far from a 40 or a 42 for most searches to catch it, too specific for a browser to take a chance on. Kiton builds jackets to hang from the shoulder rather than sit on it, which is why the fit reads differently on the body than the measurements suggest on paper. A navy stripe in a three-button keeps it in the register it was cut for.
2
Burberry
classy BURBERRY trench coat ~ sz Medium
$139
vs $2,145 retail
94% below
Gabardine was Burberry's own solution to a problem, a twill woven tightly enough to shed rain without the weight and smell of rubberised cloth, and the trench has outlasted every cycle since. A medium in a belted coat covers a wider fit range than a medium in almost anything else, because the belt does the shaping. Trenches also outlive their owners' interest in them, which is why so many good ones are in circulation at any given moment.
3
White + Warren
White + Warren Silk Cashmere Drape Front Cardigan Charcoal Gray Small Sweater
$59
vs $340 retail
83% below
Adding silk to cashmere is a weight decision before it is a luxury one: the blend runs cooler, takes a faint sheen, and falls straight instead of curling at the edges, which is exactly what an open front needs. A drape front never fastens, so it forgives a size in either direction more readily than a buttoned cardigan would. Charcoal is the least interesting thing on a resale page and among the more useful things in a wardrobe.
4
Vince
Vince Tie Back Camisole Midi Dress Peach Cotton Hemp Tiered XL Smocked Open Back
$75
vs $345 retail
78% below
Hemp blended into cotton is an unusual choice for a summer dress and a sound one, since hemp softens with each wash and holds a tiered shape away from the body rather than clinging to it. Smocking at the bodice does the fitting work here, so the XL behaves with more give than a cut-and-sewn size would. Peach sits closer to a warm neutral than the colour name suggests.
5
White + Warren
White + Warren 100% Cashmere Pink Cowl Neck Sweater Sz M Waffle Knit Soft Girl
$49
vs $325 retail
85% below
Waffle is a structural knit rather than a decorative one: the cells trap air, so the same yarn insulates at a lighter weight than a flat knit of equal gauge. Cowl necks earn their keep under a coat collar and give a short jacket something to sit against. Colour is the variable driving this one, since pink moves more slowly on a resale page than grey or camel regardless of what it is made from.
6
Vince
Vince Mens Quarter Zip Pullover Beige 100% Cotton French Terry Size Large
$68
vs $260 retail
74% below
French terry sits between a sweatshirt and a knit, looped on the inside and smooth on the face, which is how it stays warm without reading as gym clothing. Beige in a quarter-zip is the version that goes under a jacket rather than trying to replace one. The men's half of this label draws less resale attention than the women's, and that gap has nothing to do with the garment.
The practical move with a listing like this is to search the brand and category rather than the exact item, since the exact item is precisely what has no history. If a dozen near-identical pieces are clearing at four times the asking price, the gap is about search traffic. If nothing comparable appears at all, you are the one setting the comparable, and the price is only right if the garment suits you at that number on its own terms.