Every Forevermark diamond is given an inscription that represents a three-fold promise: that the diamond is beautiful, rare and responsibly sourced. Invisible to the naked eye, this inscription includes the Forevermark icon and the diamond's own, unique number. The inscription is 1/20th of a micron deep – 1/5,000th the depth of a human hair – and is placed on the table facet of the diamond, using confidential, proprietary technology developed by the De Beers Group.
The Forevermark inscription has been developed so it does not affect the internal quality of the diamond. Smaller diamonds, those of less than 14 points, cannot accommodate the inscription, and therefore are not inscribed by Forevermark. The inscription can only be seen with a Forevermark Viewer which offers superb magnification and clarity.