Yeah...I agree that besides colour, cut is important...
But then...i guess the most important factor is PRICE ...
It was couple years ago, Birks offers no interest monthly payment... no other admin charges.. I think it's a good option...
Controversial sources:
The Canadian Government has set up a body known as Canadian Diamond Code of Conduct[53] to help authenticate Canadian diamonds. This is a stringent tracking system of diamonds and helps protect the "conflict free" label of Canadian diamonds.[54]
Don't ignore the importance of the stone's clarity: very, very important. You probably won't want anything lower than a VS1, max VS2 (both already quite smoggy in my opinion).