Or, a lion rampant sable, between three oak leaves vert.
This version of the coat of arms is my own interpretation.
Motto: Dei dono sum quod sum
This motto comes from 1 Corinthians XV10:
But by the grace of God I am what I am:
and his grace which was bestowed upon me was not in vain;
but I laboured more abundantly than they all:
yet not I, but the grace of God which was in me.
I have no reason to believe that my Sharman ancestors were related to the Sharmans who merited this coat of arms - but perhaps yours are.