Combine the raw sugar and cinnamon in a small dish. Moisten the rim of a rocks glass with water or pomegranate juice. Dip the rim of the glass into the cinnamon sugar mixture. Fill the glass with ice cubes and set aside.
Fill a cocktail shaker with ice. Pour the gin, pomegranate juice, lemon juice and maple syrup into the shaker. Shake vigorously for 10-20 seconds.
Pour the gin mixture into the prepared rocks glass. Top off with club soda. Stir gently. Garnish with pomegranate seeds and lemon wedges.