This is the perfect make-ahead dinner party dessert!
In medium saucepan, stir gelatin and lemon juice until gelatin dissolves. Let stand for 15 minutes. Whisk in sugar and 1 cup cream. Bring to a simmer over medium-low. Whisk in yogurt and remaining 3/4 cup cream. Divide among 8 small bowls or glasses. Chill for 8 hours. In small saucepan, boil pomegranate juice, honey, and vanilla bean seeds until mixture thickens, about 4 minutes. Chill honey; drizzle over panna cotta. Garnish with pomegranate seeds.