Customer Service: Erin was awesome and answered all my questions without hesitation. She sent me photos and videos of all the diamonds that I wanted to see. She also provided other diamond options within my budget that were better quality than the diamonds that I was viewing. I highly recommend her if you're going to purchase from Brilliance.
Price: Brillance had the best prices for loose diamonds that I could find. They beat out my local jewelers as well as online retailers.
Packaging: Brilliance lags in this department as they send your merchandise in a cardboard box with "Brilliance" written across. Of course, the ring is in its own box, but I would have liked a box for all of my documentation. The cloth provided is also very small and ineffective for cleaning.
Overall: Due to their pricing, customer service that I received and beautiful ring, I rated Brilliance a 4 out of 5. As I mentioned, their packaging needs improvement.