I've asked this question in a couple different places and I feel like I can't get a straight answer.

Is there any need for a gem to be over 3000 silvers in value for a maximum-level chrism? Does it degrade the benefits of the chrism or is it just a yes-or-no thing (if it's less than 3k, it can't be used at all, if it's >= 3k, it works just as well no matter the value)?

Looking to collect some orb gems to have blessed, but I'm not sure which ones I can keep and which should be sold off.