Kevin Mazur/WireImage; Bauer-Griffin

Christina Applegate flashed her gorgeous vintage-style diamond engagement ring while out in L.A. yesterday—and it is quite the stunner! Musician Martyn Lenoble (pictured) proposed on Valentine’s Day, but the TV star has only recently sported the sparkler, which according to StyleList.com, boasts approximately four carats of diamonds and cost about $70,000. Congratulations to the happy couple!