Matt Lauzon, founder of Gemvara, tweeted the above picture this past weekend, announcing his engagement. And today Scott Kirsner reports that he’s stepping down as CEO of the company he created while at Babson, to be replaced by COO Janet Holian:

Taking over as interim CEO while the company conducts a search is Janet Holian, a former VistaPrint executive who has been serving as Gemvara’s chief operating officer since last year. Lauzon tells me he will remain chairman, but is no longer at the company in a day-to-day operational role

Lauzon told Kirsner it was always his plan to step aside when the company needed him to, and he’s been replaced once before. Previous CEO Deb Besemer took the reins for under a year in 2009.

The online jewelry company has raised $51 million, including a $25 million Series D this summer. My colleague Greg Gomer has reported on Gemvara in depth over the past few years, and you can read further coverage here.

We’ve contacted Lauzon for comment and will update if we hear anything else. He’s been working on this company since before graduating college in 2007, and that’s a long time in startup years. So here’s hoping he can enjoy his engagement and the extra time off.