Ok, I've been lurking here long enough, it's time to post! On a recent vacation, my husband and I purchased a couple of loose diamonds-I've wanted to upgrade my E-ring to a three-stone number in platinum for a while, and we figured buying the stones duty-free at a discount was the way to go, as long as we stuck to a reputable shop (Diamonds International, headquartered in NY). The stone we purchased for the center is a .90 ideal cut RB, eye clean I1, near colorless (I don't have the EGL appraisal on me right now, but I know it was in the G-H range-plus we held it to a couple of 1 carat stones and it looked the same size, so yay on that). In the store we noticed there was a feather near the side of the pavilion, barely visible without a loop, but we couldn't see it at all from the top of the stone, so we went for it. Fast forward to when we get home-we held it under a loop at our house (near an open window) and it appears there is a small feather/crack on the side of the pavilion. I don't know if I should be extremely concerned about this-it's at a place where, once the diamond is properly set, there is zero chance of an impact, but could it cause problems down the road? We're still within the money-back guarantee timeline for a couple more weeks, I just don't want to wait around too long and end up with a stone that will crack down the line. Thoughts?