You are not capable of sending Gems in Restaurant Story
Install the related games made by the creators and you can always get six gems in return and for free.
No, it is an in-app purchase.
You will have to earn some by doing changes sorry :( if you finish a change and you do not get gems there a other changes that will have gems
All ways are now patched
Claw machine :( waste of gems
Yes. You can earn more gems by preparing recipes again and again.
You get a little as you gain levels. Also you have to buy gems for $4.99.
Yes you can by levelling up and cooking lots of one type of food
simply being a rez or zoes club :)
Up until a week ago you could get 6 free gems if you down loaded bakery story, monster live, restaurant story, etc (anything that used a storm id). And then just uninstall them after you get the gems. But I haven't seen that offer for over a week.
As far as I've found out, the only way to get gems is by paying real money. The only thing I'm hating about this game!!