On September 2007, Ava and Brandon welcomed their baby girl Ava. The exact height of Alex Guarnaschelli is not available but from photos she appears to be five foot four to five foot five inches tall.Alex’s net worth is estimated to be 1.5 million dollars. She got her money from being an author and from working as an executive chef.he exact height of Alex Guarnaschelli is not available but from photos she appears to be five foot four to five foot five inches tall. Alex’s net worth is estimated to be 1.5 million dollars.