Unfortunately, when it comes to the Resists on Gargish Earrings/Necklace, GM Armslore bonus does not affect them, and neither does the material used.
GM Armslore bonus DOES affect (30 total resists = 10 base + 20 exceptional)
My garg has (from 5 items):
+25 Health/+40 Stamina/+40 Mana/+40% LMC/+2 MR/+20% HCI and all 60's Resists
The total stats are:
50% EP, 150 STR, 150 HP, 185 Stamina, 77 Mana (could increase up to 79 with detective boots but don't wont alter them)
4 FC, 6 FCR, 12 MR, 46% LMC (40% LMC when I use a slayer talisman like Flame Slayer, Bird Slayer, etc)
50% HCI, 45% DCI, 100% DI, 20% SSI (max swing speed with 120 Stamina - when she's cursed and/or damaged)
100% HML, 100% HLL, 34% HSL, Super Slayer (she has 6 different weapons with all craftable super slayers)
all 70 Resists, Nightsight