Is this engagement ring an ok deal?

it is a 3 stone 14 kt white gold ring with a total of 3/4 carat split evenly between the 3 round brilliant diamonds. sl1 clarity G-H color excellent symmetry, no fluorescence. It costs $1500. Is this an ok deal? My girlfriend wants a 3 stone ring with all of the diamonds about the same size is the reason I am not looking at one larger stone. Thanks for any and all help! I don't want to get a ring from ebay or a pawn shop.