Kay Jewelers review: diamond earing

I bought my diamond earing from kay jewelers at westminster mall 2 years ago. It was from a set of 1 carrot total weght. The store closed at this location. now i had to go to flatiorns in broomfield colorado to get service for my jewelry. well i had a 1/2 carrot diamond earing that needed a back that i lost. they said that they needed to send it in to get another one, I was a little hessetant but did it any way when my earing was sent back it was not the same earing, they tried to pawn a 1/4 carrot earing on me. they lied and cheated me out of a 1500. dollar earing. they said that since i signed the paper I would half to accept the earing that is clearly not mine, never again will i got to ther stores and dont get me wrong I truly beleive they will cheat you out of your jewelry in some way if you are not careful. l.P.S. I left the ear ring there and will not ever see it again, bummer that earing had sentimental value and canot be replaced.