This is not nessasarilly a "cheat" but many people are oblivious to this wonderful way of earning 100s of gems! When you to to your catalogue you will choose a collection to purchase you items from. Ex: say all business: in every collection there are 4 pieces- top, bottom, shoes, accessory(s). And next to each piece the is an orange bar(also on the collection, which is an avg of the pieces) each clothing item(collection piece) say ex: a white button top has 4 tiers or levels on which you earn by buying the item in bulk- which is a truth in most sales, so this is no glitch but people don't always pay attention to subtle detail, unfortunately. Anyways each clothing items 4 levels are (level 1) $2000 coins (L2) 1gem (L3) $4000 coins (L4) 1 gem. So in each collection of clothing you can earn ($18,000 coins*** NOT including profit) and (8 gems) so if you buy bulk you will make a real profit I think there are like 25+ collections, some arent reviled to low levels, some are to a certain point. And the make up counter I know can provide gems as well - how many? I know a min. (8 gems) & (18,000coins) so it's an investment. I really like this game it has excellent strategy which it at 1st glance appears to lack. It's very femine to a slightly childish apearence, well the app is. It looks to barbie but really it's business and interior design altogether a great game.