If Karl says its fails, eliminate it. He's a pro and veteran with diamonds. I know its frustrating, but I'd keep looking.

If Karl says its fails, eliminate it. He's a pro and veteran with diamonds. I know its frustrating, but I'd keep looking.
Look through the stones I posted. If you are short of time, look at WF. They have the stones in their hands (in house diamonds anyway) and can give you realistic and reliable delivery/pickup dates. I'd only go with JA if you have time on your side.
I know the WF may be a bit smaller than you wanted, but they have a fantastic upgrade policy.
I love a good local jeweller, but if you have a short timeline now, you need someone with the diamond already in their hands.