Anões eram de fato naturalmente resistentes aos efeitos corruptores de Sauron, talvez mais do que até mesmo os Hobbits.
Dos Anéis do Poder e da Terceira Idade:
Sauron gathered into his hands all the remaining Rings of Power; and he dealt them out to the other peoples of Middle-earth, hoping thus to bring under his sway all those that desired secret power beyond the measure of their kind. Seven Rings he gave to the Dwarves; but to Men he gave nine, for Men proved in this matter as in others the readiest to his will. And all those rings that he governed he perverted, the more easily since he had a part in their making, and they were accursed, and they betrayed in the end all those that used them. The Dwarves indeed proved tough and hard to tame; they ill endure the domination of others, and the thoughts of their hearts are hard to fathom, nor can they be turned to shadows. They used their rings only for the getting of wealth; but wrath and an over-mastering greed of gold were kindled in their hearts, of which evil enough after came to the profit of Sauron.
Anexo A da LOTR:
For the Dwarves had proved untameable by this means. The only power over them that the Rings wielded was to inflame their hearts with a greed of gold and precious things, so that if they lacked them all other good things seemed profitless, and they were filled with wrath and desire for vengeance on all who deprived them. But they were made from their beginning of a kind to resist most steadfastly any domination. Though they could be slain or broken, they could not be reduced to shadows enslaved to another will; and for the same reason their lives were not affected by any Ring, to live either longer or shorter because of it.
Transformaram-se em sombras, tornando-se "invisíveis", a forma especular que leva, eventualmente, a tocar os wraiths. O Anel, como uma extensão do poder de Sauron, isso sugere, poderia incitar Gimli à raiva e à ação precipitada e à ganância, mas não poderia influenciar diretamente sua mente para se defender. O bando de anões de Bilbo parecia igualmente não afetado pelo Anel em sua presença.