Diane Lane shows off evergreen beauty in sleek black ensemble at ELLE Women In Hollywood event

Diane Lane was snapped Monday at ELLE's Women In Hollywood event at the Beverly Wilshire Four Seasons Hotel, donning a sleek all-black ensemble on the autumn evening alongside her colleagues.

Lane, 54, wore a silky shoulder-less top with straps on the shoulders, and a black belt with silver embellishments.

The House of Cards actress rounded things out with black pants and black heels, and had her shoulder-length auburn locks neatly parted to the side while accessorizing with diamond earrings.

Stunning: Diane Lane, 54, was snapped Monday at ELLE Women In Hollywood at the Beverly Wilshire Four Seasons Hotel, donning a sleek all-black ensemble on the autumn evening alongside her colleagues

Stunning: Diane Lane, 54, was snapped Monday at ELLE Women In Hollywood at the Beverly Wilshire Four Seasons Hotel, donning a sleek all-black ensemble on the autumn evening alongside her colleagues

The Academy Award-nominated Unfaithful star has long been involved in pro-environmental efforts, last month penning an op-ed for the Washington Post urging leaders in Congress to curtail offshore drilling.

'The assaults on our oceans have grown more brazen; and they can be traced to Congress giving a pass to Big Oil and its deep pockets for decades,' Lane wrote in the piece. 'It's time lawmakers finally redeem themselves and act to protect our oceans.'

She cited a number of examples in which drilling had a devastating impact, and said that the issue was not a partisan one, as people share the same waters.

'I’m hopeful that capitalism, science and respect for nature can find common ground, pass these critical pieces of legislation and prove that we’ve truly learned from the past horrors of offshore drilling disasters,' she wrote. 'Perhaps our shared and beloved oceans will finally turn our political conversations purple.'

Stylish: The actress wore a silky shoulder-less top with straps on the shoulders, and a black belt with silver embellishments

Stylish: The actress wore a silky shoulder-less top with straps on the shoulders, and a black belt with silver embellishments

Gleaming: The House of Cards actress accessorized with diamond earrings

Gleaming: The House of Cards actress accessorized with diamond earrings 

Passionate: The Academy Award-nominated Unfaithful star has long been involved in pro-environmental efforts

Passionate: The Academy Award-nominated Unfaithful star has long been involved in pro-environmental efforts 

Last month, she was honored at the Rainbow Room in her native New York City by the nonprofit organization Oceana for her efforts, according to the organization.

'I'm deeply honored to be a part of Oceana's mission to save our precious one-and-only blue planet,' she said at the event, which was also attended by former President Bill Clinton and veteran actor Ted Danson.

Lane, who was married to Josh Brolin from 2004 until 2013, was one in a who's who of actresses who attended the luxe gathering. Others in attendance included Gwyneth Paltrow, Zendaya, Margot Robbie, Mindy Kaling, Charlize Theron, Scarlett Johansson and Nicole Kidman. 

Feted: Lane was honored at the Rainbow Room in her native New York City by the nonprofit organization Oceana for her environmental efforts

Feted: Lane was honored at the Rainbow Room in her native New York City by the nonprofit organization Oceana for her environmental efforts

Way back when: Lane was married to Avengers actor Josh Brolin from 2004 until 2013

Way back when: Lane was married to Avengers actor Josh Brolin from 2004 until 2013

Diane Lane shows off evergreen beauty in sleek black ensemble at ELLE Women In Hollywood event

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