STYLETHREAD -- LET'S TALK SHOP!

To loop over your head, you will need at least ~ 40". Alternatively, you can use a pearl shortener and buy a shorter necklace - the pearl shortener (technical term, AFAIK, though they are used to shorten all types of necklaces) will hook the two ends of a long necklace together to make it a two-strand necklace. This is my preferred method, because the two strands totally stay in place.

"AA" quality...without seeing in person, quality descriptions can be very subjective, so take it with a grain of salt. What most people look for in pearls though (whether real or fake), is a smooth nacre, consistent size and color, and a nice "pearly" shine.

HTH