Pluses:

+1 One gem/mineral has been added to this weapon to strengthen it - Gray

+2 Two gems/minerals have been added to this weapon to strengthen it - Silver

+3 Three gems/minerals - Gold

+4 Four gems/minerals - Copper

+5 Five gems/minerals - Red

+6 Six gems/minerals - Green

+7 Seven gems/minerals - Blue

+8 Eight gems/minerals - Purple