** Shares of Nu Skin Enterprises NUS.N jump 18.1% premarket to $7.75 after beauty products firm announces sale of its Mavely affiliate marketing technology platform

** NUS shares on course for biggest one-day pct advance since Jul 2, 2020, if gains hold

** Provo, Utah-based Nu Skin says its Rhyz subsidiary sold Mavely to influencer and social-media marketing firm Later, a portfolio co of Summit Partners, for approx $250 mln in cash and stock

** According to the agreement, Nu Skin said consideration includes $230 mln in cash and shares of combined Later/Mavely business valued at $20 mln

** Nu Skin expects to retain ~$207 mln in cash and $10 mln in stock after payment of ~$33 mln to other Mavely holders

** Co says deal generated roughly five-times return on its cumulative investment in Mavely since acquiring platform in 2021

** It says plans to use transaction proceeds to pay down debt, and buy back stock under existing repurchase program

** NUS shares have market cap of $326 mln through Thurs close

** Stock closed at $19.24 a year ago

(Lance Tupper is a Reuters market analyst. The views expressed are his own)

((lance.tupper@tr.com 1-646-279-6380))