To convert carats to pounds divide by 2267.962. I've generated some hopefully helpful examples randomly below, as with most random sentences please excuse the repetitive and occasionally comic outcomes.
In 9.8 carats of ruby's there are 0.00432106 pounds, to achieve this take 9.8 and just divide by 2267.962.
To convert 7.9 carats into pounds divide by 2267.962 giving 0.0034833 pounds.
You've got 2.2 carats of gold but someone only wants to buy that in units of pounds, to change the units divide by 2267.962. Now you have 0.00097003 pounds.
How many pounds of emeralds are there in 3.4 carats? Just divide by 2267.962 to get the answer of 0.00149914 pounds.