FAQs ABOUT GEMPRINT

Why does every diamond have a unique Gemprint® pattern?

The typical round brilliant diamond has 57 facets. The arrangement and relation of each of these facets to one another is always slightly different; each facet can be a slightly different shape, size, and angle. There are an infinite number of possible combinations and an infinite number of ways a diamond reflects a beam of light. This is why every diamond, even those of the same shape and weight, has a unique Gemprint® pattern.

Does the Gemprint® pattern printed on the GCAL certificate relate to the diamond’s inclusions or clarity?

No. The Gemprint® is a distinct optical reflection pattern of a laser beam of light. Inclusions can play a part in the uniqueness of the Gemprint® pattern if they alter the path of the beam of light, but the pattern does NOT represent the location of inclusions.

Does the Gemprint® identification ever wear off?

Gemprint® is a permanent identification technology for loose and mounted diamonds that does not physically mark the diamond. However, Gemprint® does become invalid if the diamond is re-polished or re-cut, in which case the diamond should be sent to GCAL for a new Gemprint® registration.