How to date Yves Saint Laurent (the Rive Gauche label)

The tells — 9, sourced

1. 01

   THE CENTRAL TRAP, and it costs real money: 'SAINT LAURENT rive gauche' on a label narrows almost NOTHING. The line opened 26 September 1966 (21 rue de Tournon) and kept the same name through five different designers — the founder, then Alber Elbaz on women's and Hedi Slimane on men's (1998–2000), then Tom Ford, then Stefano Pilati — until the 2012 rename. A Rive Gauche tag is the START of the dating question, never the answer. Date by construction, season reference and provenance.

2. 02

   The designer relay, exactly: founder-era Rive Gauche from 1966; Slimane installed on MENSWEAR by Pierre Bergé in 1996 (final YSL collection AW2000-01 'Black Tie'); Elbaz chosen by Yves himself for WOMEN'S ready-to-wear in 1998, roughly four seasons, ousted within months of the Gucci Group takeover; Tom Ford's first Rive Gauche collection is SPRING 2001 and his last is the AW2004 show on 7 MARCH 2004; Stefano Pilati 2004 to a final collection in March 2012.

3. 03

   The two-year gap sellers get wrong: Yves Saint Laurent retired on 7 January 2002 and took his farewell bow at the Centre Pompidou on 22 January 2002 — that closed the COUTURE house. Ford's ready-to-wear kept showing until March 2004. 'Post-retirement therefore post-Ford' is a false inference; Ford ran roughly eight seasons, not three.

4. 04

   THE OWNERSHIP SPLIT (1999–2002), which is why two YSLs existed at once: Elf-Sanofi sold the YSL group to Gucci Group (Pinault-Printemps-Redoute, now Kering) in 1999, but haute couture was spun off as a SEPARATE company under Pierre Bergé with Saint Laurent still couturier. Couture and ready-to-wear had different owners and different designers for three years under one name.

5. 05

   The Slimane rename is the cleanest boundary in the house and it interlocks with the HEDI SLIMANE protocol: from June 2012 ready-to-wear reads 'SAINT LAURENT PARIS' (all-caps, sans-serif), with 'Yves Saint Laurent' reserved for couture. 'YVES SAINT LAURENT' on ready-to-wear = pre-2012. Separate Hedi (SS2013–SS2016) from the Anthony Vaccarello era that follows by the season code, not the wordmark. Vaccarello has held the house since 2016 and is still there in 2026.

6. 06

   NO MAISON PROTOCOL EXISTS — say this out loud before quoting anyone's chart. The numeric codes, serial formats and font variations circulating as YSL 'authentication' are community-derived (Vintage Fashion Guild tier). They orient; they do not decide, and no one should be treated as holding a house-issued cipher.

7. 07

   The undervalued lanes, both hiding under the same tag: Elbaz's ~four seasons of Rive Gauche womenswear (1998–2000) and Slimane's YSL menswear (1996–2000) are real authored work that the market still prices as generic vintage. Grade the hand, not the tag.

8. 08

   Market boundary — refuse this conflation: the €374 million Christie's sale at the Grand Palais (February 2009) was the Bergé–Saint Laurent private ART and decorative-arts collection, NOT the fashion archive. It is not evidence about garment values. The house's realized GARMENT ceiling is the SS1988 couture 'Sunflowers' jacket (Lesage embroidery, four made) at €382,000, Christie's Paris, 27 November 2019 — an individual result, not a benchmark.

9. 09

   Flagged as unresolved, not fact: the 'In 13 minutes, you have managed to destroy 40 years of my work' letter to Tom Ford rests on a memoir allegation. The verified public criticism is 'Saint Laurent in name but not in its vitality.' The Muse bag's 2005/2006 date is reseller-sourced, not primary.

Two sources or it ships as rumor. Where a tell is collector-lore rather than a museum fact, the tell says so — weight it with construction and provenance, never alone.

The full dossiers