Feather Inclusion Reaching Girdle Surface

This 1.00 carat H color SI2 diamond above features a feather that spans from the crown side down into the pavilion, appearing to cross the girdle. Based on the clarity plot, the feather begins near the 7 o’clock position in the crown view and continues to about the 11 o’clock position in the pavilion view. This indicates that the feather runs diagonally through the midsection of the diamond, breaking the surface at both the upper and lower halves. While the inclusion itself is not strongly visible in the face-up view, the diagram clearly marks its presence and extent. That’s exactly why clarity plots are so important: they alert you to surface-reaching inclusions you might otherwise miss. In cases like this, feathers that break the surface in more than one area may slightly weaken the diamond’s structure, especially if the stone is exposed to sharp impacts or high-pressure settings.

This doesn’t automatically disqualify the diamond, but it’s something to be aware of, especially for active wearers or if the diamond will be set in a tension setting or thin band with tight prongs. For a feather to raise serious durability concerns, it typically also needs to be clearly visible, something that is not the case here if you view the diamond from all sides.