Bring the ingredients for the Rosemary Honey Syrup to a simmer and cool completely. Strain the rosemary.
Fill a glass with ice and add the grapefruit juice, honey syrup, and wine. Stir just to combine the syrup.
Strain the ingredients into red wine glasses filled with ice. Top with sparkling water and garnish with lemon peel by rubbing the rim with the zest side and placing into the glass.
Finish with the rosemary sprig in the glass as well.