Shailene Woodley confirmed she's engaged to Aaron Rodgers and gave the first glimpse at her ring that could be worth $500,000

• Shailene Woodley is engaged to Aaron Rodgers, as she told Jimmy Fallon on Monday.
• She also gave the first few glimpses of her diamond engagement ring during the appearance.
• Ajay Anad of Rare Carat told Insider that the ring could be 6 carats and valued at $500,000.

Shailene Woodley confirmed on Monday that she's engaged to football player Aaron Rodgers.

During an appearance on "The Tonight Show," the actress told Jimmy Fallon that their announcement isn't actually "new news," and that they've been engaged "for a while." She didn't share any details about her engagement ring, though she did flash her diamond across the screen a couple of times.

According to Ajay Anand, the founder and CEO of diamond search engine Rare Carat, Woodley's ring could have cost at least $500,000.

Anand noted that while the video footage of Woodley isn't crystal clear, her engagement ring appears to feature "a rectangular cut" diamond that could be around 6 carats.

"From the glimpse given, the band appears to be yellow gold, and it perhaps has an antique vibe to the design," he added. "Assuming high color and clarity, a diamond of this size would have a retail value around $500,000."

During her interview with Fallon, Woodley described Rodgers as a "wonderful, incredible human being." She also joked about his football career.

"I never thought I'd be engaged to somebody who threw balls for a living," Woodley said.

The actress also noted that she'd never been to or seen a football game before meeting Rodgers and that her friends have had to explain her fiancé's athleticism to her.

"I don't know him as a football guy," Woodley said. "I know him as like, the nerd who wants to host 'Jeopardy.'"