Tevida take the supplement consistently. The Bottom Line These is increasingly consuming as a diamond that would have an inclusion(s) which could be easily visible without any magnification... it would not be what could be considered an "eye clean" diamond. By the use of this clarity enhancement process, the diamond has become a diamond which now can be described as "eye clean" because the inclusion(s) are less visible. Clarity enhanced diamonds can be bought for a considerable savings in comparison to a similar non-enhanced diamond. A bit of history- Clarity.