In 2007, Gamm reached her breakthrough season in diving, when she and her partner Subschinski earned a bronze medal for the same discipline at the FINA World Championships in Melbourne, Australia, accumulating a score of 306.63 points. At the 2008 European Aquatics Championships in Eindhoven, Netherlands, Gamm captured her fourth consecutive gold medal (the first being done in 2002), along with her partner Subschinski, in the women's synchronized platform, with a total score of 336.63.