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Ex-'Mad Men' actor Jared Harris engaged to Allegra Riggio

Life after "Mad Men" is proving to be pretty sweet for Jared Harris. The 51-year-old actor -- who played Lane Pryce on the AMC series until last season -- is engaged to marry longtime girlfriend Allegra Riggio, his rep confirms to Us Weekly.PHOTOS: The "Mad Men" cast on and off camera The star proposed to TV host Riggio on Sunday, June 2, with a custom-made engagement ring by Erica Courtney.
Jared Harris and Allegra Riggio.
Jared Harris and Allegra Riggio. WEST HOLLYWOOD, CA - FEBRUARY 24: (L-R) Actor Jared Harris and Allegra Riggio attend the 21st Annual Elton John AIDS Foundation Academy Awards Viewing Party at West Hollywood Park on February 24, 2013 in West Hollywood, California. (Photo by Dimitrios Kambouris/Getty Images for EJAF)Getty Images file
Jared Harris and Allegra Riggio.Today

Life after "Mad Men" is proving to be pretty sweet for Jared Harris. The 51-year-old actor -- who played Lane Pryce on the AMC series until last season -- is engaged to marry longtime girlfriend Allegra Riggio, his rep confirms to Us Weekly.

PHOTOS: The "Mad Men" cast on and off camera

The star proposed to TV host Riggio on Sunday, June 2, with a custom-made engagement ring by Erica Courtney. The stunning sparkler features a heart-shaped diamond in a rose-gold setting, with smaller diamonds placed around the band and an "H" initial on the gallery (for "Harris").

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Riggio, who met her British beau a little more than three years ago, confirmed the couple's happy news on Twitter. "We're engaged!" she announced happily. "#TeamHarris."

We're+engaged!+<3+#TeamHarris

—+Allegra+Riggio+(@Allegratastic)+June+4,+2013+

PHOTOS: 2012's celebrity engagements

Later, the beautiful bride-to-be responded to fans on the social-media site, gushing that she and her groom were "giddy and adorable" over the engagement. "Feeling SO MUCH love today!" she wrote on Tuesday, June 4. "Thank you guys for your well-wishes! So happy."

"Bouncing, floating, giggling, dancing, and merriment are ensuing," she added.