Diamonds are not typically sold by the ounce, unless you're buying industrial diamonds.
You can engage the services of an industrial diamond broker who has been in business for the past 20+ years, who can answer your question specifically.
Gem-quality diamonds by the ounce will cost you millions, depending on the cut, colour, clarity and carat weight you purchase to make up a full ounce -- about 141 carats.
$11,000 per ounce
A ounce of gold costs 500dollars
19.99 an ounce
An ounce of rice is about 48 cents, an ounce of gold is about $ 1,160
Like $3.00 for a one ounce
1,200
A diamond rind would cost around $160-$200
800
About $2
about $500 an ounce
$5,000,000,000,000 per ounce
From where to where .