Saint Laurent Costume Jewellery Resale Value

Saint Laurent costume jewellery: price by condition

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

1. A leather tab inside the bag carries a serial and a country stamp; photograph it along with the interior stamp on the lining
2. The cassandre logo should be crisply cast with even spacing between the letters, which is what buyers compare first
3. 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 costume jewellery, whatever the label

Costume jewellery sells cheaply in bulk, but signed mid-century pieces are genuinely collected.

• Signed pieces from recognised costume makers
• Mid-century and Art Deco designs
• Complete parures and matching sets
• Bright, untarnished plating

And what pulls one down

• Missing stones and rhinestones
• Worn plating showing base metal
• Broken clasps and fittings
• Modern mass-produced pieces

Working out what yours is worth

1. Check the reverse for a maker’s signature
2. Count the stones and note any missing
3. Bundle unsigned pieces rather than listing singly

What to state in the listing

• How many pieces and what types
• Any signed or marked pieces, named individually
• Approximate era if you can judge it
• Honest split between wearable pieces and spares or repairs

Quantity, era and any names: “Costume Jewellery Job Lot, 30 Pieces, Some Signed, 1980s”. Quantity is the search for lot buyers. Naming any signed maker lifts the whole listing, so check before you bundle.

Preparing and photographing it

1. Check the reverse of every piece for a signature. Signed costume jewellery can be worth many times an unsigned equivalent.
2. Test every clasp, pin and catch, and set aside anything broken.
3. Sort into wearable and spares, and clean gently without immersing anything with foil-backed or glued stones.

1. The whole lot laid out together, countable
2. Any signed pieces photographed individually, front and back
3. A close-up of typical clasps and settings
4. Any broken, tarnished or missing-stone pieces, grouped honestly

When it sells best, and handing it over

Steady to lot buyers and crafters year round, with a Christmas lift. Signed pieces sell individually and quickly.

Light and cheap to post. Bag pieces separately or interleave with tissue so chains do not tangle irretrievably in transit.

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 Saint Laurent costume jewellery worth?

Roughly £9 to £45 depending on condition, against £5 to £25 for costume jewellery 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 £27 for Saint Laurent costume jewellery, against what the commission marketplaces would deduct:

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 costume jewellery for the title, handover and timing, or the general costume jewellery value guide if yours is not a Saint Laurent.

See also: all Saint Laurent value guides · value guides by brand · buying costume jewellery · Jewellery & Watches · condition grades.