Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume: released in 2020, white floral, citrus and woody, about 5h on skin, projection 6/10, sillage 3/10. The alternatives below are matched to that profile.
The closest Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume dupe we found is Lanvin Rumeur — 78% match, about $25 (estimate) versus about $40 for a 100 ml bottle.
The five closest scent matches — the best Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume dupes we found, ranked by opening & dry-down similarity:
| # | Alternative | Scent match | Est. price (100 ml) | Longevity vs Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume | Projection |
|---|---|---|---|---|---|
| 1 | Lanvin Rumeur | 78% | about $25* (−37%) | 7h vs 5h | 5/10 |
| 2 | Yves de Sistelle Verona | 73% | about $25* (−37%) | 6h vs 5h | 6/10 |
| 3 | O Boticário Linda Radiance | 72% | about $25 (−37%) | 5h vs 5h | 4/10 |
| 4 | La Martina Quimera Mujer | 68% | about $30 (−25%) | 6h vs 5h | 5/10 |
| 5 | L'Bel Liasson Temps | 63% | about $30 (−25%) | 5h vs 5h | 4/10 |
Shares a similar white floral and musky character, offering a clean and sophisticated profile reminiscent of the reference.
It shares its white floral, musky and rose accords with Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume, lasts about 7h against 5h and carries 2,138 community ratings.
A light, floral-forward scent that captures the airy and feminine essence found in the reference.
It shares its white floral, citrus and rose accords with Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume, opens on Grapefruit and Mandarin Orange too, lasts about 6h against 5h and carries 106 community ratings.
Evokes a similar bright, citrus-and-floral freshness that feels clean and approachable for daily wear.
It shares its white floral, citrus and rose accords with Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume, opens on Mandarin Orange too, lasts about 5h against 5h and carries 276 community ratings.
Leans into a similar floral-woody territory, providing a balanced and pleasant scent profile at a budget-friendly price.
It shares its citrus, woody and white floral accords with Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume, lasts about 6h against 5h and carries 18 community ratings.
Offers a soft, powdery floral experience that aligns with the delicate and feminine nature of the reference.
It shares its citrus, woody and powdery accords with Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume, opens on Grapefruit too, lasts about 5h against 5h and carries 30 community ratings.
Lanvin Rumeur, at about $25 for 100 ml (estimate) — around 35% less than Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume.
Lanvin Rumeur, at about 7h on skin, against about 5h for Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume.
Lanvin Rumeur, at 78% overall scent match across the opening and the dry-down.
Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume itself sells from $24.49 (100 ml) at partnered retailers.
At 4 sprays a day — about 146 ml a year — Lanvin Rumeur saves you about $20 a year against Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume. Assumes 100 ml bottles on both sides; prices are estimates.
Across 2,358 originals, the median designer bottle is $120 and its closest match $30 — the Dupe Report 2026.
On an 8-hour day, none of the 5 last a full 8 hours. Lanvin Rumeur comes closest at 6.9h, so it needs one re-spray to cover the day.
Karl Lagerfeld Karl Paris 21 Rue Saint-Guillaume notes, performance and price
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Updated 2026-08-20.