Tom Ford FT108
In Quantum of Solace (2008), James Bond (Daniel Craig) wears Tom Ford sunglasses, model FT108. Although they are very similar or identical to Oliver Peoples Airman sunglasses, they were finally identified to be Tom Ford sunglasses. (Read the thread about the confusion between Oliver Peoples and Tom Ford on AJB007.co.uk forum, and another related thread).
The glasses, made of a semi-matte rhodium frame with black temple tips and smoke blue lenses (19V) are handmade in Italy by Marcolin. The glasses come in a special case with James Bond logo.
Unfortunately these sunglasses are now not available anymore. The only chance to find these online is on eBay.com.
UPDATE November 2015 Currently one pair is on offer for £350 / $530, see it here.
A pair of original screen used Tom Ford 108 sunglasses was auctioned at the 50 Years of James Bond - The Auction at Christie's at the end of September 2012 and sold for £23,750.
Original retail price: around £200 / $350 - $450 / €250.