Pair of lamp stands - marble? (Oakridge RG21)

Two lamp stands that made of marble, or a marble-like material anyway. One has gone somewhat yellow as you can see in the photos. I believe that these were quite expensive when originally bought from BHS. One lamp is complete with a cable but no plug; the other could do with a new cable / plug (I'm sure I can let you have a cable / plug as well). To go as a pair ideally.