Convert from gigatonne to point

Unit Definition (gigatonne)
The gigatonne is a metric unit of mass or weight equal to one billion metric tons (tonnes) or about 2.2046 trillion pounds. This very large unit is used, for example, in discussing the amounts of carbon added to the atmosphere by human activities.

Unit Definition (point)
The point is a unit of mass used for precious stones such as diamonds. One point equals 0.01 carat, or exactly 2 milligrams.