We are so confident in our products, we offer a lifetime guarantee on the enhancement of the clarity. Every diamond sold by Van Amstel Diamond is a natural diamond from the earth which has been technologically enhanced to become as brilliant, clear and beautiful as modern science can make it. The only things likely to compromise the integrity of your diamond's enhancement are the flame of a torch or boiling acids and bases.
In the unlikely event your diamond should lose its enhancement, Van Amstel Diamond will gladly restore the enhancement of your diamond at no charge. No questions asked.