Well, diamonds have long been revered and acknowledged to be the hardest substance on earth that the only thing capable of cutting it would be another diamond. Diamonds if you donâ€™t know are made from carbon through which the millions of years under intense pressure and heat in the earthâ€™s crust has transformed it into a very tough symmetric crystal that is almost indestructible. It cutâ€™s glass and has a sense of mystique breaking up light into the many wavelengths that show up as the colors of the rainbow.
Then scientists and material manufacturing experts who have been experimenting with the production of artificial diamonds in laboratories and industrial complexes producing diamonds of industrial grade come up with a reliable and repeatable method for doing so. The second largest use for diamonds are for industry where they are used in abrasives/drills, Semi-conductors and coatings for optics giving them an almost scratch-proof finish, the first being for jewelry. That is why scientists have developed ways to manufacture them in the lab, taking only days rather than thousands or millions of years. These diamonds are at the microscopic level and they have also found it to be one of the best conductors of heat and around. Disks of diamonds that result from man-made processes can cut through ice with only the bodyâ€™s heat transmitted through the finger compared to gold, silver or aluminum (todayâ€™s most widely used heat dissipation products). This makes it a candidate for future heat sinks and other technologies that would require heat removal such as cooling systems for super computers and such. Costs are still quite high so doing expect to see a diamond based cooling system for your PC but they are developing applications for these man-made gems.
Gemologists have argued that the influx of man-made diamonds is a threat to the value and standing of natural diamonds that they may someday be impossible to tell apart. The only give away of an artificially made gem is that it is too perfect. Perfect color (which can be blue, yellow, clear and many other shades depending on the minerals that were present in the carbon as it crystallized) and the absence of cleavages or cracks and flaws are the main giveaways. They are also seeking to have trace elements to be included in the carbon mixture to give some form of detection method making it easier to recognize a real gem from the rest.