How do I get crystals for the market?

You can earn them by doing quests (achievement quests,in the plot quests) also there are some daily quests (you have toAsdxadssax buy something to get those diamonds though) daily login (give 50 diamonds double for vip)also getting a certain amount of stars on chapters (such as 9 stars) also you can earn the randomly by choosing cards (diamonds aren't always going to be a option for the prize though),also reaching a certain level can earn diamonds,Aldo share on Facebook on what level you are,it'll be where bonuses is at

You have to have purple or orange gear,purple gear gives less crystals than orange gear,but remember orange gear is worth more than purple,so it's best to possibly keep the orange gear