USA Certed Diamonds?

[McGinnis]

Has anyone purchased from USAcertedDIamonds.com? I see a link showing up when I do a diamond search on this site.
What about B2C Jewels?
Both of these sites seem to have lower prices and was wondering if they were reputable.
Thanks guys

 

[autumngems]

I purchased my 3.02 ct from USA Certed at a great price, they diamond is awesome and I had no problems at all with them.

 

[Tekate]

I bought a diamond wedding band from B2C and I was very satisfied.

 

[McGinnis]

Great, thanks!
Do you suggest calling them?
I've tried messaging them with no success