Open console (~ or '). Type player.additem ItemCodeHere #
# = Quantity of item you want.

ItemCode = Codes listed below.

Code - Effect
Amber Gauntlets Matrix - 00016560
Amber Boots Matrix - 00016561
Amber Cuirass Matrix - 00016562
Amber - 00016568
Amber Shield Matrix - 0001657D
Amber Helmet Matrix - 0001657E
Amber Greaves Matrix - 0001657F
Amber Arrows Matrix - 00016CF1
Amber Bow Matrix - 00016CF2
Amber Hammer Matrix - 00016CF3
Amber Sword Matrix - 00016CF4
Amber Mace Matrix - 0001F3E8