Jeanne Schlumberger / Katia Granoff
Two rival houses, one consignment — Sotheby's (“IRIS” / Le Temps Retrouvé) vs Christie's (“Lumière”)
Sotheby's
“IRIS — Le Temps Retrouvé”
Christie's
“Lumière”
Works
72
Total estimate
€40.6M–€55.9M
Lots > €400k
13
Lots < €10k
33
Sotheby's-recommended total — 3rd-highest estimate ever for a collection sale in Paris
Iris
Claude Monet, 1924–25
€22.0M–€30.0M
Highest estimate ever given to an artwork presented in Paris; highest ever for a Monet Iris
Saule pleureur
Claude Monet, 1918–19
€9.00M–€12.0M
Second anchor lot of the collection
Each point is a sale of a top-tier comparable. Higher = sold further above its low estimate. Point size = result value. Unsold lots sit on the baseline.
Hollow red-ringed points = unsold (bought in). 657 comparables shown.
Computed across 657 tracked painting lots for the ten collection artists — the houses' actual record, not their decks. Best figure each row is highlighted.
| Metric | Sotheby's | Christie's |
|---|---|---|
| Lots tracked | 282 | 375 |
| Sell-through rate | 66% | 94%★ |
| Median % of low estimate | 148%★ | 136% |
| Share beating high estimate range | 95%★ | 90% |
| Total hammer (tracked) | $956M | $1.60B |
Tracked lots are the significant/notable results we have sourced per artist — not the houses' full back-catalogue. Sell-through here reflects this sample.
Where the two proposals make competing claims — and where they spin the very same painting in opposite directions.
Taux de lots vendus
Sotheby's
100% vendus — 0 lot invendu
Christie's
84,6% vendus — 6 lots invendus
Sotheby's : seule maison à vendre 100% des lots majeurs de Monet. — IRIS p56 (Sotheby's)
Surperformance prix marteau / estimation basse
Sotheby's
+31%
Christie's
+21%
Sotheby's affiche +10 points sur la vente de chefs-d'œuvre de Monet. — IRIS p56 (Sotheby's)
Même tableau, lectures opposées
Christie's New York · May 2011
Est. $15.0M–$20.0M
Unsold
cited by Sotheby's
Christie's London · Jun 2015
Est. £6.00M–£9.00M
£10.8M · 180% of low
cited by Christie's
Sotheby's
Christie's NY, mai 2011 — est. $15–20M → INVENDU, puis revendu 4 ans plus tard ayant perdu sa fraîcheur (échec)
Christie's
Christie's Londres, juin 2015 — est. £6–9M → £10,8M = 180% de l'estimation basse (succès)
Le tableau-test : Christie's met en avant la vente de 2015 ; Sotheby's rappelle l'invendu de 2011 qui l'a précédée. — Lumière p13 vs IRIS p57
Parts de marché & performance
Sotheby's
23% de parts de marché en valeur ; 98% de l'estimation basse en moyenne ; prix moyen 2,7 M$ ; 9 adjudications millionnaires
Christie's
76–77% de parts de marché en valeur ; 90% de taux de vente ; 107% de l'estimation basse en moyenne ; prix moyen 6 M$ ; 16 adjudications millionnaires
Christie's revendique 3 des 5 meilleurs prix Cézanne, dont le record absolu. — Lumière p35 (Christie's)
Leadership sur les ventes de collection
Sotheby's
160 ventes / 30 462 lots ; 209% de l'estimation basse en moyenne ; 48 ventes en gants blancs ; plus grande collection €129M (Dorothée Lalanne) ; 9 des 10 meilleures >5M€
Christie's
18 des 25 plus grandes collections jamais vendues (3 des 5 premières) ; YSL/Bergé €342,5M = 211% ; n°1 des collections privées en France
Les deux maisons se déclarent n°1 des ventes de collection en France — selon des métriques différentes. — IRIS p65 vs Lumière p38/40
Parts de marché — saison parisienne
Sotheby's
60,3% de part de marché ; €89,7M ; 172% / 90%
Christie's
39,7% de part de marché ; €59M ; 126% / 83%
Sotheby's : record pour une session de ventes du soir à Paris (+52% vs oct. 2024). — IRIS p20 (Sotheby's)
The largest single-collection sales each house has staged — the context both proposals invoke to win the consignment. Bar height = hammer result (USD).
Labels show % of low estimate achieved. Source: Lumière p38 (Christie's), cross-house top-25 list.
Every masterwork comparable both proposals put forward, with the paintings extracted from the source documents.
Christie'sPommes rouges
Gustave Courbet, 1872
Est. £40k–£60k
£409k
1023%
of low est.
Christie's London · Nov 2011
Sotheby'sDeauville. Le champ de courses
Eugène Boudin, 1893
Est. €300k–€500k
€2.37M
791%
of low est.
Sotheby's Paris · Dec 2021
Christie'sLa Bonne Fée
Gustave Moreau, 1880
Est. €30k–€50k
€176k
588%
of low est.
Christie's Paris · May 2022
Christie'sLa plage de Villers
Eugène Boudin, 1891
Est. €80k–€120k
€446k
556%
of low est.
Christie's Paris · Mar 2016
Sotheby'sLa valse, 1ère version
Camille Claudel, 1892–93
Est. £1.50M–£2.00M
£5.12M
342%
of low est.
Sotheby's London · Jun 2013
Sotheby'sL'oncle Dominique en casquette
Paul Cézanne, 1866–67
Est. $2.50M–$3.50M
$7.10M
284%
of low est.
Sotheby's New York · May 2019
Sotheby'sLe canard blanc
Chaïm Soutine, ~1925
Est. €700k–€1.00M
€1.97M
281%
of low est.
Sotheby's Paris · Jun 2010
Christie'sMur de jardin
Paul Cézanne, 1867–68
Est. $250k–$350k
$693k
277%
of low est.
Christie's New York · May 2023
Christie'sLa Grand-mère aux poules
Pierre Bonnard, 1890
Est. €180k–€250k
€406k
225%
of low est.
Christie's Paris · Apr 2026
Christie'sIris mauves
Claude Monet, 1914–17
Est. £6.00M–£9.00M
£10.8M
180%
of low est.
Christie's London · Jun 2015
Christie'sL'Homme et la Femme
Pierre Bonnard, 1900
Est. €300k–€500k
€533k
177%
of low est.
Christie's Paris · Oct 2025
Christie'sPaysage
Paul Cézanne, 1862–64
Est. $250k–$350k
$435k
174%
of low est.
Christie's New York · Jul 2020
Sotheby'sPlace Clichy
Pierre Bonnard, 1906–07
Est. £2.50M–£3.50M
£4.15M
166%
of low est.
Sotheby's London · Jun 2006
Christie'sLa valse (Les valseurs)
Camille Claudel, 1893
Est. £700k–£900k
£1.11M
158%
of low est.
Christie's London · Jun 2018
Christie'sPaysage du midi
Chaïm Soutine, ~1918
Est. £180k–£250k
£249k
138%
of low est.
Christie's London · Jun 2018
Sotheby'sLe Poète et la Sirène
Gustave Moreau, 1892–93
Est. $2.00M–$3.00M
$2.75M
138%
of low est.
Sotheby's New York · Oct 1989
Christie'sL'Aqueduc du canal de Verdon au nord d'Aix
Paul Cézanne, 1882–83
Est. £6.00M–£9.00M
£7.16M
119%
of low est.
Christie's London · Feb 2023
Christie'sIris
Claude Monet, ~1924–25
Est. $6.50M–$8.50M
$2.50M
62%
of low est.
Christie's · Nov 2011
Christie'sSaule pleureur
Claude Monet, 1918–19
Est. £15.0M–£20.0M
£7.80M
52%
of low est.
Christie's · Jun 2016
Christie'sUnsoldIris mauves
Claude Monet, 1914–17
Est. $15.0M–$20.0M
—
n/s
of low est.
Christie's New York · May 2011