Because there is less of them than gold and they are harder to mine.
Diamond and Uranium
diamond is alot harder than goldAnother AnswerBy weight, gem-quality diamonds are more valuable than gold. By weight, gold is more valuable than industrial diamonds. Only about 20% of all diamonds mined are gem-quality.
Diamond are much more valuable than gold even considering the recent price rise for gold.
It is more valuable than gold because there is a few amount of gold and more dirt. So it is easy to find dirt than it is to find gold. That is why gold is more valuable than dirt.
Rhodium and platinum are both more valuable than gold.
Diamonds are more valuable than coal.
Yes diamond is more valuable than diamond at first i thought gold was more valuable but its not this is because a small piece of gold is worth up to $3,000 but a small piece of diamond is worth up to $500,000 - $5,000,000
There are several metals more valuable than gold. Platinum is one.
Of equal weight, gem-quality diamond is more valuable than silver.
Gold is more valuable than silver. durr.
Diamonds are more valuable, more precious, stonger more expensive and last longer. Diamonds are by far better than gold and is the best mineral resource discovered
Yes, if it is pure natural sapphire it will be worth more than a diamond.