Cindy Crawford, 55, looks undeniably glamorous in a plunging emerald floor-length gown with thigh-split as she stars in Rihanna's Savage X Fenty Show Vol. 3

She's one of the world's original supermodels

And, Cindy Crawford looked undeniably glamorous in a plunging emerald floor-length gown boasting a dramatic leg slit as she starred in Rihanna's Savage X Fenty Show Vol. 3.

The 55-year-old beauty posed on a spiral staircase in the snakeskin dress during the show's big premiere on Amazon Prime Video, on Thursday.  

Cindy was preened to perfection with her lightened brunette strands styled to one side and her eyelids decked out in sparkly emerald shadow that matched gown.

She posed with her legs crossed over one another, giving a clear view of her strappy chrome heels.

Finishing off her sleek ensemble, Cindy rocked gold wrist cuffs and statement clip on earrings. 

Throughout the 1980s and 1990s, Crawford was an ubiquitous presence on magazine covers, runways and fashion campaigns. 

After more than four decades as a household name, she is regarded as one of the foremost supermodels in the world. 

From 1991 to 1995, she was in a high-profile marriage to Hollywood star Richard Gere.

Following their divorce, she tied the knot with male model turned entrepreneur Rande Gerber in 1998. 

The couple are parents to son Presley, 22, and daughter Kaia, 20, both of whom have followed their famous parents into modeling. 

Kaia, who has taken the fashion world by storm since making her catwalk debut at the age of 16, has now also ventured into acting.

Following small roles in 2016 and 2017, she booked her largest part to date in the Ryan Murphy anthology series American Horror Stories.

The show is a spin-off of the similarly named American Horror Story and the teen was seen in the second of a two-art episode that was released last week.

She also has a role in the upcoming new AHS season titled Double Feature.