Gucci GG0381S Club Master Men's Sunglasses, 57mm

these glasses are original and because they have Gucci p, which stays on the lens, what is the difference from normal Gucci?

sunglass hut sells for 283.50. are these original? why are they cheap here?

is it genuine?

Are these polorized they don’t look like it in the picture? Also do they have Gucci engraved on the lens like I seen in other pictures ?