Cusp Zodiac Association Gemology

[tyciol]

In some interpretations of associated gems, there are those that correlate with the Zodiac in which you're born. I was curious, when you are born on the cusp, meaning on one, but almost on another (I'm 22, Taurus begins only on 21), then would using the gem of the closer Zodiac be beneficial as well? In my case that's Ares...