I've seen this a few times, playing orb or bust on saewehnas.
"As you focus your voice on the hummingbird saewehna, you notice that the resonance of your voice is severely affecting the crystalline structure of the gem."
Is is merely the next step up from "crack and strain" message, thats normally assumed to be the final step, or is there something else going on? The gem just loresings as a standard gem at max value but not orbed.