Item Quality: for Eternal items, it is automatically +50%, for all others, they are found with a range of -10% to +10% (I have only found up to 8% either way so far, but I am just going by what I read posted by a Dev), but using Emeralds you can get Item Quality up to +25%. Item Quality affects Damage done by Weapons, and the Armor of the other 4 items.
Peridot: this Crystal can be used to raise the level of items if needed.
Item Level: an items level affects the base damage a Weapon does, the base Armor the other items have, and the values of the affixes on them. that is why a level 1 item is so different from a level 100 item.
Larimar, Sapphire, Flourite & Kyanite: the first three do not work on Legend or Crystal affixes, and Kyanite doesn’t work on Crystal affixes. to change the values of Legend & Crystal affixes, you need to use Diamond, which changes the values of all affixes on the item. you could use Quartz to take a Crystal affix off of an item, but that isn’t a good idea, as it takes 1-6 random affixes off of an item, so you could lose everything. to change a Legend affix, use Kyanite and then use Ruby to try again. (if the Legend affix is item only, don’t take it off unless you don’t want it, otherwise you will have to get another item with the affix again).
Affix Values: Normal, Magic, Rare, & Epic items, even with +25% Item Quality, when trying to get max values, you will still get values from lowest to highest, just better chances for highest with the max IQ. with Legend+ Items (excluding Eternal items) the Mod’s have said that values wont go below 75% of max when rolling max values. so it is easier to get max values crafting Legend+ items than the other items. (I noticed this when crafting Epic items with +25% IQ, so I know the difference. used up a lot of Crystals learning this.).
for Golems Ultimate Farm Build I took off the PtL and put on 6 Wisdom Natures. after a few days, some of the affixes on my Pet increased, so I put the Natures back to 3x Luck & Gold Find. also I changed Reclaim Talent to Prismatic, which increased the effectiveness of Amplify Talent. another change was going from Angelic Set to Demonic. my focus was on using Comets with Twister as support, and Teleport & Shatter to get out of trouble, but with only +10% cool down and harsh Resource conditions, this Build was a difficult learning experience.
the difficult thing I learned with this Build is that Masochism lowers my HP by up to 50% with any healing, and Blood Magic Mythic and PtL are increasing my Spell costs by +100% & +50%, so I have to make sure my HP will be high enough to cast my highest cost Spell.
in the end, the few changes I made allow me to smash my way through floor 130 pretty fast, and I am getting through floor 505 faster than with my Reflect Damage Farm Build, even though I die 0-4 times per map. and Epic+ monsters are kind of hard on floor 505.
basically Golems Ultimate Farm Build #1 is an improvement, and I have learned a lot again, but I am already thinking of #2 already.