Although I stated basic heat on this sapphire; it is one I re-cut to get out a nasty inclusion in the culet. I can see no evidence of heat in any way under minimum 60x; you can see the color zoning; but in your hand or mount it would be hard to notice. It has the slightest silk which does not take away from the gems lovely color. Just a nice gem in a calibrated size for a mount.
