I was diagnosed with Type 2 Diabetes in January of this year with an A1C of a 6.7. Two and a half months later through low carb high fat, weight loss and lots of walking I came down to a 5.4. I wasn't told that a second exam would determine official diagnosis. I'll have to ask my doctor when I see her. I've been struggling with diabetes since my twenties (I'm 30 now) so I probably did cross the threshold.
My diagnosis was 2 weeks ago and I tested at 13%. - hoping to manage it now. On 10 units of Lantus once a day and 2 x 500mg of metforin for the next 3 months.
Lets see....Type 2 with a 6.5......mine was a 13.8 when diagnosed. Sounds to me like you will be ok.
The A1c is an average of the last 3 months so taking it again after only 1 month will not give you much of a drop. better wait for 3 months before re test so you blood can stabilise with the new BG