Tim Gunn: Kirstie Alley is Not a Size 4

 Jemal Countess/Getty Images; Mike Coppola/Getty Images

When Kirstie Alley revealed in an Entertainment Tonight clip that she has lost 100 pounds since being on Dancing with the Stars and is down to a size 4, Tim Gunn raised a perfectly groomed, silver eyebrow.

In an interview with radio personality Steve Kramer on Tampa's 98.7 FM That Guy" Kramer show, the Project Runway star shed some light on the actress' size claim saying, "There is a phenomenon out there right now that I call the lying deceptive shell game of vanity sizing. In fact a 4 is really a 6 or an 8."

The chief creative director for Liz Claiborne explained his theory, which was based on an experiment he did at Parsons.

"We took a size 8 dress from 1980 one from 1990 and one from 2000 and compared them — the difference between them was two and a half inches in the waist alone!" said Gunn.

As for Alley's true size, the fashion guru guesses that she's between a size 8 and a 10.

"But she looks fabulous," he added. "People are too size conscious."

Regardless of Gunn's comments, Alley seems to be in a good place.

"I feel like I'm back in my element," the 60-year-old actress said in her ET interview. "I honestly didn't even realize what I looked like."

On Tuesday, Alley strutted her banging body on the Zang Toi catwalk in NYC. Clad in an elegant-yet-dramatic royal blue, rhinestone-adorned gown, she wowed the audience as she closed her designer pal's Spring 2012 show.

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