The VDI is pretty solid like a good coin hit however the VDI it comes in at depends on the size of the ring and what karat the ring is 10,12,14,18, I dug a thick 10k band last year that came in at 50VDI which I was discriminating out the low numbers at the time and dug it thinking it was an IH. Like said most will be a lower VDI as most aren't very thick and I'm sure being 10k made a difference with others metals mixed with the gold to make it 10k and it being that thick of a band. HH