If you heated diamond in air it would turn to graphite - a more stable form of carbon - long before it melted. However, it can be melted if subject to 10 million times normal atmospheric pressure. When the pressure is reduced the diamonds will crystallised again. This has led scientists to speculate that there might be "seas" of molten diamonds on Neptune and Uranus because their atmospheres generate intense pressures and also are carbon-rich.
you would be melted
Yes, diamonds can be melted at extremely high temperatures and transformed into graphite, which is a different form of carbon.
it would burn your skin
Diamonds are typically not melted in a traditional sense due to their extremely high melting point of around 3,500 degrees Celsius. Instead, diamonds are typically burned under high-pressure oxygen to convert them into carbon dioxide gas.
It would be possible if it ever happen.
It would flood
You will die.
Demons to Diamonds happened in 1982.
Diamonds don't melt, so your question doesn't have an answer.
Contract slightly as it cools off
If there was no feedback in an oven system, it would keep getting hotter until it melted, exploded, or was turned off.
They would spontaneously combust into a pile of melted sugar and fat. If you inject this melted substance directly into your Clitoris, You will have a violent orgasm and die from overexertion. This is not recommended for children of color. P.S. Rosie O'Donnel syndrome.