I bought some earrings for $4800 usd was supposed to be 1.87 carats vs1 diamonds so I go to the pawn shop the today each earring came up to 0.48ct apiece which comes out to be around 0.9ct also instead of vs1 diamond they were 1-1 e,f (colorless)

That's because you go to a pawn shop where their main objective is to give you the least amount of money possible in exchange for your jewelry. Pawn shops always try to convince everyone that their jewelry is worth less than it is, thats how they make a profit. Pawn shops are not independent jewelry appraisal labs. They hold little to no value when it comes to finding out about your jewelry.

I feel insulted