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Reference Desk
The cocoon lamp with the pinched waist, identified
It is the Gatto table lamp by Achille and Pier Giacomo Castiglioni for Flos, designed in 1960. A steel frame sprayed with polymer resin that sets into a continuous translucent skin — the technique the trade calls cocoon.
The silhouette is the tell: a round head, a pinched waist, a fluted foot that scallops where it meets the table. Nothing else in the Flos catalogue does that.
How the cocoon skin is made, and why it identifies the lamp
The Castiglioni brothers borrowed the process from industrial packaging: a steel wire frame is sprayed with a polymer that stretches between the ribs and dries as one membrane. That means there is no seam, no shade rim and no visible fixing anywhere on a genuine Gatto. If you can see a stitched edge, a fabric gather or a metal ring holding a diffuser on, you are looking at a different lamp.
The consequence at scale: light does not come out of an aperture, it comes out of the whole body. In a photograph of a lit room the Gatto reads as a soft glowing mass rather than a bright spot, which is exactly why it keeps appearing in interiors shoots and exactly why people cannot name it afterwards.
Piccolo or Grande — the two you will actually meet
Gatto Piccolo
- About 30 cm high, 19–21 cm across, per current retail listings.
- Listed at €495–€505 by European design retailers on 1 September 2026; $706 at the cheapest US retailer we verified.
- The one that fits on a bedside table. Most of the lamps people photograph are this size.
Gatto Grande
- About 56 cm high, 35 cm across.
- Listed at €635 on 1 September 2026.
- Proportionally a rounder head on a longer neck — the reliable tell when there is nothing in frame to give scale.
New versus vintage: the same lamp at seven times the price
Prices checked September 1, 2026These four asks were checked against live listings on 31 August 2026:
| Retailer | Ask | Note |
|---|---|---|
| Hive Modern | $706 | current production, small |
| MoMA Design Store | $1,020 | current production |
| Chairish | $3,000 | vintage, green felt base |
| 1stDibs | $5,200 | vintage Castiglioni example |
Read that top to bottom and the whole story is there. A new Gatto and a vintage Gatto are the same object; the vintage one costs up to seven times more. What you are buying at the top of the table is amber — the resin yellows with age into a warm tone current production does not replicate — plus whatever provenance the dealer can document.
Our judgement, plainly: unless you are collecting Castiglioni, buy new. The design is unchanged, the light is identical, and the $706 Hive Modern listing is the same lamp as the $5,200 one with sixty fewer years of ultraviolet on it. Buy vintage only if you actually want the amber, and only from a seller who will photograph the base marking.
Checking a vintage one before you pay
- Look for cracks at the waist. The narrow section takes the stress when a lamp is picked up by the head. Resin fatigues there first and it cannot be invisibly repaired.
- Even ageing beats bright. Uniform amber is patina. Patchy yellowing with clean white areas usually means heat damage from an over-wattage bulb.
- Ask for the base. The seller should show the Flos markings and any felt. A "vintage Castiglioni" with a bare unmarked base and no dealer history is a guess.
- Rewiring is fine and normal. A 1960s European lamp on original cloth flex should be rewired for US use. That is maintenance, not a defect — but it should be disclosed.
Frequently asked
What is the cocoon-shaped table lamp with the pinched waist?
The Gatto, designed by Achille and Pier Giacomo Castiglioni for Flos in 1960. A steel frame sprayed with a polymer resin that dries into a seamless translucent skin, so the whole body glows as one volume.
What is the difference between Gatto Piccolo and Gatto Grande?
Size only. Current retail listings give the Piccolo at roughly 30 cm high by 19 to 21 cm wide, and the Grande at roughly 56 cm high by 35 cm wide. Same silhouette, same cocoon skin, same designers.
Is the Flos Gatto still in production?
Yes. As of 1 September 2026 both Piccolo and Grande are listed new by European design retailers at 495 to 635 euro, and by US retailers from about $706. It is one of the few 1960 Castiglioni designs you can still buy new rather than hunt.
Why do vintage Gatto lamps cost more than new ones?
Because the resin ages. Older cocoon skins yellow to a warm amber that current production does not have, and collectors pay for it. A vintage example at $3,000 to $5,200 and a new one at $706 are the same design; you are buying the patina and the provenance, not the light.
Last verified 1 September 2026. The four retailer asks were checked against live listings on 31 August 2026. The current-production euro prices and the Piccolo and Grande dimensions were pulled from live European retailer feed listings on 1 September 2026. All figures are asking prices, not completed sales.
Sources
- CJ Affiliate product feeds, queried 1 September 2026 — current Flos Gatto Piccolo and Grande listings, their euro asks and their stated dimensions.
- US and dealer listings for new and vintage Gatto lamps, checked against the live listings on 31 August 2026 — the four asks in the table.
How this page was made. Drafted with AI (Claude); not yet independently re-checked. How we work