Two diamond-set cross pendants, by Tiffany & Co and Theo Fennell

Two diamond-set cross pendants, by Tiffany & Co and Theo Fennell
The first composed of brilliant-cut diamond line arms, 3.0cm long; the second of 18ct white gold cylindrical design with brilliant-cut diamond cross centre and line terminals, hallmarked London, 3.70cm long
The first signed Tiffany & Co Belgium, the second signed Theo Fennell