8k canadian price. I'm not sure about the chart. Actually it wasn't GIA it was gem scan or something. He said they test it according to GIA. I didn't get a lot of the information you are asking for like the depth..It looked eye clean. There was no sign of milkiness
If you want to check out pricing from other canadian wholesalers, check out http://www.diamondexchange.ca/ (toronto) http://vancouverdiamonds.ca/ (vancouver). I have not dealt with these companies personally, but they offer GIA/AGS graded stones and seem to have good reviews among locals. You can even view GIA certicate of each diamond online.
In Vancouver, at least, 8k CAD is reasonable assuming the stone qualifies for GIA Ex grade. Do you live in Toronto? They are many local stores that are transparent and offer GIA/AGS graded stones at the same price you listed. 14k setting is generally around $500 anyways. Of course, US online stores are always cheaper even considering weak CAD. There is no import duty. Just GST/PST or HST.