Saint Laurent midi dresses: price by condition
| Condition | Typical |
|---|---|
| New with Tags | £90 (~$120) |
| Like New | £76 (~$102) |
| Good | £58 (~$78) |
| Fair | £40 (~$54) |
| For Parts | £22 (~$30) |
Seller-declared grades, sterling with an approximate US dollar equivalent at £1 ≈ $1.33 (July 2026). What each grade means.
What holds its value across Saint Laurent
- The Sac de Jour, Loulou, Kate and Niki, four bags with enough name recognition that buyers search them individually
- Leather biker and Le Smoking-derived tailoring, which are the house signatures and are bought as long-term wardrobe rather than as trend
- Aged-brass and matte-black hardware in unworn condition, since the finish is a large part of what buyers are paying for
- Pieces from the Hedi Slimane period, which are collected as a distinct era and priced separately from what came before or after
What pulls Saint Laurent resale value down
- Rubbed or brassed plating on the YSL cassandre logo, which is exactly where wear shows first and is the detail buyers photograph
- Stretched or torn chain-strap anchor points, a known weak spot on the chain bags and a costly repair
- Creased and softened lambskin on quilted bags, where the shape collapses and cannot be brought back
- Licensed eyewear and beauty-line accessories, which trade well below the leather goods regardless of the name
Identifying and dating yours
- A leather tab inside the bag carries a serial and a country stamp; photograph it along with the interior stamp on the lining
- The cassandre logo should be crisply cast with even spacing between the letters, which is what buyers compare first
- Ready-to-wear carries a season code on the interior label, which places a piece in the Slimane, Vaccarello or earlier period
What lifts any midi dress, whatever the label
Midi dresses sell year-round, which makes them one of the more reliable clothing categories, though supply is heavy.
- Recognisable brands with a resale following
- Structured fabrics that hold their shape
- Working zips and intact linings
- Classic cuts that are not tied to one season
And what pulls one down
- Bobbling on knitted and jersey fabrics
- Underarm marks and deodorant staining
- Stretched necklines and hems
- Very trend-specific styles
Working out what yours is worth
- Check underarms and neckline closely in daylight
- De-bobble knitted fabrics before photographing
- Measure bust, waist and length
What to state in the listing
- Shoulder-to-hem length in centimetres
- Bust, waist and hip measured flat
- Whether it is lined, and the fabric composition
- Zip or button fastening, and whether it has pockets
Style, fabric and size: “Floral Midi Wrap Dress, Size 12, Lined”. Length is what the word midi promises, so give the actual centimetres in the description — on different heights a midi becomes a maxi or a midi becomes a knee-length, and that is what drives returns.
Preparing and photographing it
- Measure the full length from the shoulder seam to the hem, plus bust, waist and hip laid flat.
- Check the zip runs cleanly and look for underarm staining, which is the most common reason a dress is unsellable.
- Read the composition and care label, and note whether it is lined.
- The dress on a hanger, full length, front
- Flat with a tape showing the shoulder-to-hem length
- The fabric close up, showing texture and pattern accurately
- The zip, the lining, and any stain, snag or pull
When it sells best, and handing it over
Strongest from March to August, with a second lift before the party season. Off-season listings sell noticeably slower.
Light and cheap to post. Fold with tissue in the creases if the fabric is prone to wrinkling and say you have done so.
What buyers ask
Which Saint Laurent bag sells best secondhand?
The Sac de Jour and the Loulou, both of which buyers search by name. Bags without a recognised model name compete against the whole designer market and sell for less.
Does worn hardware really change the price?
Yes, more than most sellers expect. The cassandre logo plate is the focal point of these bags, and brassing or scratching on it is the first thing a buyer looks for. Photograph it close up rather than hoping it goes unnoticed.
How much is a Saint Laurent midi dress worth?
Roughly £22 to £90 depending on condition, against £12 to £50 for midi dresses generally. The identification points above are what move a listing to the top of that range.
What the fees would take elsewhere
At the mid-range £56 for a Saint Laurent midi dress, against what the commission marketplaces would deduct:
| Platform | Fee | You keep |
|---|---|---|
| Poshmark | −£11 | £45 |
| eBay | −£8 | £48 |
| Mercari | −£6 | £50 |
| Etsy | −£4 | £52 |
| WishThrift | −£0 | £56 |
Seller-side rates verified 26 Jul 2026, percentages only — the per-order and processing charges those platforms add are excluded, so the real gap is wider.
Listing is free and there is no commission — read how to sell a midi dress for the title, handover and timing, or the general midi dress value guide if yours is not a Saint Laurent.
See also: all Saint Laurent value guides · value guides by brand · buying a midi dress · Clothing · condition grades.