The Collaborative International Dictionary of English v.0.48:

glasscutter \glasscutter\ n.
   1. one who cuts or grinds designs on glass.
      [WordNet 1.5]

   2. one who cuts flat glass to size.

   Syn: glassworker, glazier, glazer.
        [WordNet 1.5] glassed

WordNet (r) 3.0 (2006):

glass-cutter
    n 1: someone who cuts or grinds designs on glass [syn: glass
         cutter, glass-cutter]
    2: someone who cuts flat glass to size [syn: glass cutter,
       glass-cutter, glassworker, glazier, glazer]