I. Good condition GIA Diamond Course Book 1980 Assignment 1 – 43 a few supplements might be missing but for the most part complete includes tests and supplements some have been filled out shown in pictures. blue binder is 1 – 6 & 15 – 19 vol 1 binder is 20 – 32 vol 2 binder is 7 – 14 and 33 – 43