GEM / Exceptional(9-10) (C14_6_5)

AAA / EX. FINE(8-9) (C14_5_5)

AA / FINE(6-8) (C14_5_3)

A / GOOD(4-6) (C14_5_2)

B / Commercial(3-4) (C14_6_1)

C / Lower Commercial(1-3) (C13_7_1)