Apollo produce compared to the natural variety. Apollo can create completely colorless and flawless which are not likely to occur naturally. Colorless or white are extremely rare and all have flaws which make them unique.
Apollo will look perfect but they are not likely to be original. It is very hard for diamond dealers themselves to tell the difference and this, combined with the price, is believed by many to be the issue that could bankrupt the major diamond businesses. The made by Apollo are extremely cheap and are said to cost only a few dollars per carat to create so it stands to reason that the potential for a huge amount of profit is available for the taking.
To summarize, Apollo are inexpensive and beautiful to look at. It is hard to tell the difference between these and the real thing and they are essentially a perfected version of the natural resource. The resources of could be exhausted and not all are attractive looking while Apollo can be recreated forever as a colorless gem. The gems produced by Apollo are ridiculously cheap compared to the original so it is no wonder that many believe that these synthetic could end up replacing natural as the favorite gem.