I weighed my old Eddy Custom Kevlar and it was 1,467g. My Thibault mold full kevlar mask weighed 1,430g. The thing I remember when I first wore the Thibault Protechsport was that it felt dramatically lighter, probably due to the better fit and weight distribution.
My newer Lalime mold full kevlar weighed in at 1,335g so the mold that you get will make a difference in the actual weight. Fiberglass models will obviously weigh more than the kevlar ones.