I guess there should be an option to sell our skins which we purchased using diamonds and get back those diamonds back with some condition like [ 10% less diamonds after selling purchase skin or you can't resell skins within some time limit like 1 month] This way players can optimally use their diamonds and if made wrong purchase can rectify their mistake !
#Option to sell Purchased skins with some condition .
fresh lava
grave crow
I think so but not the 10% less diamonds