"Yes", she wrote in the caption, including a diamond ring emoji.
In the image, which was taken at the beach, Lea holds her hand in front of her face to show off a large emerald cut diamond in halo setting.
Lea previously opened up to People about her life with 32-year-old Zandy, "I'm very happy and I think that you can tell".
The actress has kept her beau mainly out of the limelight.
The two were first linked together in July 2017 and have been together for over a year. News, Zandy graduated from the University of Pennsylvania in 2005 with a degree in economics, and though he's worked for companies like Goldman Sachs and Renaissance Capital, he's now in the fashion industry.More news: Ford is killing off its saloons in North America
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But it looks like Glee star Lea Michele has finally moved on with Zandy Reich from her emotional relationship with Cory Monteith, says Hollywood Life. "They've been friends for a long time, a few years", the source shared.
Actress Lea Michele is engaged to boyfriend Zandy Reich.
From Lea's previous social media posts, it's been clear that she and Zandy have something special.
Lea Michele's friends claim that she was still mourning the Glee actor.
Her world was shattered in 2013 when her Glee co-star was found dead of a drug overdose in a Vancouver hotel room. The two have been dating for more than a year.