Break chocolate into pieces and microwave until half melted. Mix until chocolate has completely melted.
Line a round bowl with foil. Pour the melted chocolate inside, using a spoon to cover as much surface as possible. Refrigerate until chocolate has hardened. Once it has, take the foil off and set the chocolate dome to the side.
Segment the orange by paring the peel and white pith from thr orange.
Place the orange segments on a plate, followed by granola, vanilla ice cream and mixed berries. Place the chocolate dome over. Place a piece of gold leaf on top if desired. Pour coffee (instant coffee mixed with hot water) over the chocolate and serve.