Combs, 45, and Ryan, 44, made it official on Saturday in "a romantic outdoor ceremony" in Carmel, California.
The two had been engaged for two years, which she announced on social media with a photo of her marquise-cut diamond engagement ring.
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Combs reportedly had a blast at a bachelorette party last month, posting on Instagram, "Long and Happy Life. #incoming #3rdTimeIsTheCharm." She was referencing her prior marriages, to Bryan Travis Smith (1993-1997) and David Donoho (2004-2011).
With Donoho, Combs is the parent of sons Finley, 15; Riley, 12; and Kelley, 10.