By aqua, one can assume that you're interested in a lightly coloured blue-green-ish diamond.
Depending on the exact colour and carat weight, cut and clarity you want, you could spend lots of money or not quite so much money.
You can review the link, below, to help you decide.
No. Aqua regia is used to dissolve noble metals: gold and platinum. It does not affect diamond.
If you buy the pro aqua during the demo, it is $2487.00. If you wait to buy on a later date, it is $3287.00
A diamond rind would cost around $160-$200
there isn't a aqua plate it is a splash plate, you find it underground
998,000,000,000
BRITA Aqua fountains on average cost «£40 and can be purchased from the following retailers: Amazon, Argos, Lakeland, Kelkoo, Viking Direct, eBay, to name a few.
34.99
one life
$8000000
Your answer depends entirely on the diamond, its cut, carat weight, clarity and colour.
$60
Your answer depends on both the diamond and the tree. You can consider size, rarity, quality -- each categories that dictate cost.