fiend ~ % rvm gemdir
/usr/local/rvm/gems/ruby-1.9.2-p136
fiend ~ % rvm use 1.9.2
Using /home/teamon/.gems/ruby-1.9.2-p136
fiend ~ % rvm gemdir   
/home/teamon/.gems/ruby-1.9.2-p136
fiend ~ % tail /etc/rvmrc
# Setup default configuration for rvm.
# If an rvm install exists in the home directory, don't load this.'
if [[ ! -s "$HOME/.rvm/scripts/rvm" ]]; then
  umask g+w
  export rvm_selfcontained=0
  export rvm_prefix="/usr/local/"
fi

export rvm_gems_path=$HOME/.gems
fiend ~ %