I am in the market for a present for my wife..I want to buy her a Diamond Pendant Necklace in the 1.0-1.25 carat range..si1, g/h...My questions are as follows:1) Am I better off buying exactly what I am looking for from a jeweler?? Do vendors on this site sell the whole package?2) Should I buy a diamond from a vendor on here and have someone local do the chain and and bezel? If I take this route, what kind of cut should I be looking 4?? I would assume it would be different then an engagement ring type of diamond. (not as deep so it's not poking her in the neck)..I just found this site so this is all new to me,,,any/all help would be great!!!!!!Glenn Ajmo