Other possible side benefits to wearing strong, clear red stones like ruby are protection against misfortune, strengthening of independence and avoidance of circulatory and stomach issues.  Ruby, especially of the quality that is used in healing, astrology and protection, can be very expensive.  Other stones that might do the trick and are acceptable substitutions are Spinel, Rhodolite and Almadine.  Most important for any gem to be used in the ways we are discussing - it should be natural - not treated by heat, radiation or fillers.

If you are drawn to the peridot, regardless of your sign, it can still be of use to you.  Soothing green stones promote higher energy levels and positive thinking.