Sorry, however, can't tell based on just a couple of photos alone.
Where did you buy it and how much did you pay for it? How big is the stone?
Etc. etc...
Hopefully, with more information, the experts on here may be able to make an educated guess.
DK
Based on the color, cut and clarity of these stones, I think these are natural spinels. The purple/gray one is a trendy color, though the stone seems to be suffering from extinction in the middle. I'm guessing the seller's photos showed the stone in extremely favorable if not enhanced lighting conditions. It's one of the things you learn to look for and notice as you become a more experienced buyer. I hope the stones were not particularly expensive, but I do not believe they are fake.
It’s not clear what you are disappointed by, so maybe including the vendor pictures would be good so we can see the difference. I assume the vendor has a return policy? If not, then take it as part of your learning journey I guess.
1. The grey one is like 5mm. 1.3 carats. Super small. Is it normal? I bought for 60usd.