Allochromatic gems are gems that happen to be colored by impurities. Should they ended up totally pure, they might be colorless. The color of all allochromatic gems is made by defects. Consequently, all shade in corundum is attributable to defects. Clarity: Clarity is yet another noteworthy factor that refers back https://www.tumblr.com/thegemjournal/759696203354128384/understanding-the-unique-characteristics-of-yellow?source=share