How much should i sell this for?

Baught it a year back and i am not using it anymore, Only wore 3,4 times and have no scratches. Warranty still remaining 1.6 month. Full box condition with proper papers. What would be the fair price. Genuinely asking.

Baught it a year back and i am not using it anymore, Only wore 3,4 times and have no scratches. Warranty still remaining 1.6 month. Full box condition with proper papers. What would be the fair price. Genuinely asking.