I think that's WAYYYY off....
2,000 points is $25,
$25 of gems is 2,500
2,500 gems at 1:560 is 1,400,000 treasure...
Good luck buying~
Considering how it's only $1 = 80 Points when you're buying points directly from dA, and actually 100 = $1 when transferring back to USD, it'd be worth $20.
Of course, taking in mind that we're going by TBT rates here, and
TBT is 1:1 dA
but 100 TBT/dA: 15-18kT FR, of course you aren't going to get the "perfect" cash exchange rate.