Joanne Froggatt Shows Off the ''Only Diamond She Owns'' on the 2015 SAG Awards Red Carpet, Wishes She Was ''a Bit Cooler''

We think the darling Downton Abbey star is incredibly cool!

By Natalie Finn Jan 26, 2015 12:25 AMTags
Joanne Froggatt, SAG AwardsJordan Strauss/Invision/AP

Joanne Froggatt truly never ceases to delight.

The Downton Abbey star, fresh from her surprise supporting actress win at the Golden Globes, was as darling as ever when she stopped by to chat with Ross Mathews during E!'s Live From the Red Carpet before the 21st Annual Screen Actors Guild Awards tonight.

Though not nominated individually this evening, she is nominated as part of the beloved British import's ensemble, and she was more than happy to reminisce about her big—and shocking—Globes triumph.

"I can't believe it! I'm still on cloud nine," the blond beauty, stunning in a plunging strapless dress by Honor, recalled.

Watch: "Downton Abbey" Star Talks Unbelievable Awards Win

"It was the most amazing, surreal, wonderful experience," Froggatt continued.

"I genuinely was more surprised than anyone possibly, ever, but it was the best possible surprise a girl could get...I wish I was a bit cooler, but I can't help it, I wear my heart on my sleeve and it was a very genuine reaction."

Well, we think she's perfectly cool—and never more so than when she talked about the one bauble that wasn't on loan for the evening.

"This is my engagement ring," Froggatt explained as she danced her neutral-hued nails past our Mani Cam. "This is the only diamond I own.

Ross noted that that's really the only one that matters, and she agreed. "I'm a very lucky girl," she said.