Saint Laurent · Tier 3

Cassandre Envelope

Name: Saint Laurent Cassandre Envelope Medium
Brand: Saint Laurent

Catalogued June 2026

The Cassandre Envelope is Saint Laurent's chain-strap envelope bag, a compact flap pouch with the house's chevron-quilted topstitching and the metal Cassandre YSL logo on the front. Shaped like a flat envelope with a sliding chain for shoulder or crossbody wear, it sits between a chain wallet and a small evening bag in the Vaccarello-era lineup. We could not cleanly source a single introduction year, so we leave it unset.

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The Saint Laurent Cassandre Envelope Medium is a Leather bag.

What it's worth

Saint Laurent · Cassandre Envelope · Medium

All Medium colours and leathers · 250 recorded prices

Best listed right now: $693 on The Luxury Closet, well below the typical price (median $2,066).

Prices have been trending up over the tracked window.

No longer in production, so resale is the only way to buy it.

By condition · compared like-for-like

excellent

14 prices

very good

9 prices

$1,025$3,015

By production era · decade

2010s

6 prices

2020s

6 prices

$845$2,025

Resale by production era: 12 listings, estimated from recorded prices.

Estimated from recorded resale prices (227 with condition unrecorded) · not an appraisal. As of 2026-09-21.

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Where it stands

#216

of 558 styles in the LC Index

Up 75 this month

✦One number for where a bag stands in the whole market.
⚖Blended from price, trade volume, and scarcity.
◷Recomputed monthly from recorded market prices.

Our index, not a verdict. How we rank

The three measures behind #216

By priceof 558 styles

#271Montsouris · Louis Vuitton
#272Cassandre Envelope · Saint Laurent
#273Horsebit 1955 · Gucci

By trade volume

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Bag DNA

What this bag is made of. Tap any part to explore the rest of the catalog.

SHouseSaint Laurentest. 1961 · France LeatherLeather

Guides for this bag

Articles on the Cassandre Envelope and Saint Laurent from our verified experts.

Saint Laurent authentication: The markers worth checking
The 2012 rebrand from Yves Saint Laurent to Saint Laurent Paris is the master dating tell, plus the Cassandre hardware, embossed serial, and Loulou quilting that catch most fakes. Why the name has to match the age.
By Arielle · Loulou

Photos

This bag is a rare find.

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Specifications

SizeMedium

Exterior materialLeather

ColorwayNot yet documented · know it? Tell us

Hardware colorNot yet documented · know it? Tell us

StatusDiscontinued

About Leather

Typeleather

Resale price history

+85%

$1,436 → $2,656 across 250 recorded sales

2026-06 – 2026-09

Estimated from recorded resale prices · not an appraisal or investment forecast. Values can go down as well as up.

Research depth

We haven’t researched the authentication details for this variant yet. The brand-level markers still apply: check the Saint Laurent guide →

Where to buy

Pre-filled searches on the major resale platforms. Listings and prices are set by each reseller. What protects you at each venue

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Search on Fashionphile✓ Authenticates every item · 15-day returns on eligible items Search on The RealReal✓ Authenticates every item · Handbags are final sale Search on Vestiaire CollectiveAuthentication available · Limited: final sale unless not as described

Where to sell

Selling is a trade: top dollar takes patience, fast cash costs you margin, keeping it all costs you the safety net.

See what you'd keep at each venueThe Saint Laurent Cassandre Envelope run through every venue's real published fees, ranked by what lands in your pocket.

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Sell fast for cash

An instant buyout quote. Less than top dollar, but paid on receipt.

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Listed for you and paid when it sells, after commission. Usually nets more than a buyout.

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Care for it

Leather: A little upkeep goes a long way. Shape it, keep it dry, and clean gently.

Leather cleaner

A mild cleaner that lifts everyday grime before it sets into the grain.

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Leather conditioner

Puts moisture back so the leather stays supple instead of drying and cracking.

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Protectant spray

An invisible barrier that helps the bag shrug off water and light stains.

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Our picks are a starting point. Test anything new on a hidden spot first. Some Amazon links are affiliate links.

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Cassandre Envelope

Choose your Cassandre Envelope

Add it to your closet

What it's worth

Where it stands

By priceof 558 styles

By trade volume

Bag DNA

Guides for this bag

Saint Laurent authentication: The markers worth checking

Photos

Specifications

About Leather

Resale price history

Research depth

Where to buy

Where to sell

Care for it

Suggest an edit

Is this information accurate?

By scarcityfewer listings, higher

Have this in hand? Show us how it really carries.

How it carries

What owners say

What kind of bag it is

How well it holds up

Reviews

For sale right now

Similar bags

Choose your Cassandre Envelope

Add it to your closet

What it's worth

Where it stands

By priceof 558 styles

By trade volume

Bag DNA

Guides for this bag

Saint Laurent authentication: The markers worth checking

Photos

Specifications

About Leather

Resale price history

Research depth

Where to buy

Where to sell

🧴 Care for it

Suggest an edit

Is this information accurate?

By scarcityfewer listings, higher

Have this in hand? Show us how it really carries.

How it carries

What owners say

What kind of bag it is

How well it holds up

Reviews

For sale right now

Similar bags

Care for it