Two inclusions have pressures between 24 and 25 GPa, indicating the formation of inclusions at 610–800 km.[23] The pressures of the ice-VII inclusions provide evidence that water must have been present at the time the diamonds formed in the transition zone in order to have become trapped as inclusions. Researchers also suggest that the range of pressures at which inclusions formed implies inclusions existed as fluids rather than solids.[23][22]