Evidently, the diffusion coefficient is delicate to impurities or structural challenges from the crystal, but that remains for being quantified. For our rough estimates of enough time at temperature necessary to take out the hydrogen from our samples, the hydrogen diffusion coefficient selected is that presented by Belonoshko et al. https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share