Peel, core and halve peaches. Slice each half into 8 slices. Reserve. Combine jams in a large frying pan over low heat. Cook until jams are liquefied. Pour in brandy and Amaretto. Increase heat to medium and bring to a boil. Add peaches and stir together until peaches are tender and warmed through, 3 to 5 minutes. Remove from heat and stir in lemon juice. Cool. Place ice cream in serving dishes such as coupes or wine glasses and top with peaches, sauce and almonds.