Your answer depends entirely on the diamond, its cut, carat weight, clarity and colour.
A diamond rind would cost around $160-$200
998,000,000,000
34.99
$8000000
one life
$60
Your answer depends on both the diamond and the tree. You can consider size, rarity, quality -- each categories that dictate cost.
Diamonds cost and weigh on an individual basis.
8 000 000
one life
8 000 000
One tenth of a carat is a small weight for a diamond -- your local jeweler may have such a diamond to sell.