I was not happy with the limited selection of engagement rings available at Kay jeweler. They had only two 1ct diamonds to choose from and I didn't like either of them. They were duds! This was before I educated myself about diamonds. I researched best online diamond dealers and found Whiteflash, among others like Bluenile and James Allen. I liked the A Cut Above line, because I wanted to get the best cut diamond possible having not seen the diamond in person. I was looking for a princess cut and since Whiteflash uses AGS certifications this made my choice much more simple. Other sites do not have AGS certified princess cuts on all their diamonds. Everything went great, and the ring and diamond are beautiful. Still two months in and we are still loving the way it sparkles in low light and how bright and clear the diamond is. I had it cleaned at a local jeweler and he kept telling me what a good choice I made. I think just going in with not much knowledge you cant go wrong with their ACA diamonds. The best of course costs a little more, but some of the other vendors I looked at with somewhat cheaper diamonds didn't come with an AGS cert, and had a lot of inclusions I didn't care for.