They RUINED my ring...
I took an engagement ring here a few weeks ago to have the prongs changed from white gold to yellow gold. My husband and I initially ordered this ring from Blue Nile. It WAS a beautiful ring with a fancy yellow diamond. We felt my changing the prongs to yellow gold to match the diamond it would make it more vibrant... The white gold prongs would wash the diamond out from certain angels.
When initially dropping off the ring they said it should take a week or less. After a week of waiting they said it would not be done till mid next week. At that point I decided I wanted my ring back and my husband went to get it... Well, they cut the entire center of the ring out (including the shank/mounting, not just the prongs/head - not what we wanted!). After almost another week (13 days total), we got the ring back.
They had replaced the entire head with this big boxy thing that was almost double the size of the previous one. It looked way too big for the stone and did not go with the ring at all. The ring is uneven and the diamonds next to the center stone do not look secure. And now the ring does not fit with the matching wedding band that goes with it.