in a small saucepan combine 1/3 cup of the sugar and 1/3 cup water. bring mixture to a simmer until the sugar is dissolved. Add the cranberries and simmer 5 minutes or until they have barely popped. Transfer to a small bowl and let cool or chill in the refrigerator.
Repeat with the remaining 1/3 cup sugar and add the apricots. Simmer, covered, for 5 minutes. Transfer to another small bowl and cool or refrigerate.
Working over a bowl cut away the rinds and pith of the grapefruit and oranges and cut the fruit into sections. Chill the citrus fruit.
to serve: mix the citrus fruit with the cranberries, apricots and their syrups.