Scientists have found a way to manufacture 10-carat half-inch thick colorless diamonds.
Manufactured diamonds--which some believe could play a large part in the industrial and jewelry market--are generally produced through the so-called high pressure/high temperature (HPHT) method, similar to how diamonds are created in nature.
The new technique grows 10 carats diamonds at an average of 0.1mm per hour. Read more at CNET