ruby

ruby (http://definr.com/ruby)

     adj : having any of numerous bright or strong colors reminiscent
           of the color of blood or cherries or tomatoes or rubies
           [syn: red, reddish, ruddy, blood-red, carmine,
            cerise, cherry, cherry-red, crimson, ruby-red,
            scarlet]
     n 1: a transparent piece of ruby that has been cut and polished
          and is valued as a precious gem
     2: a transparent deep red variety of corundum; used as a
        gemstone and in lasers
     3: a deep and vivid red [syn: crimson, deep red]