Which meta gem?Follow

Which of these Meta gems are better for a healing priest?

Bracing Earthstorm - +26 healing, and 2% reduced threat

or

Insightful Earthstorm - 12 intellect, Chance to restore mana on spell cast (Reading the comments on Wowhead, it says this can come out to anywhere from 5mp5 to 20mp5).

BTW, the guy that will be using it is most holy with some disc.

The insightful is very nice in and of itself, but what clinches it is the meta-requirement. Insightful requires 5 of each color, which sounds bad, but multi-color gems count double towards that, so it's very doable. The Bracing diamond, by contrast, requires more yellow than blue AND more red than blue. This is harsh. More red than blue isn't so bad, as pure red gems boost +healing directly, but yellow gems give us spell crit, which you should not rely on at all. Blue gems are MUCH better for a healer than yellow. It'd be hard to meet the Bracing diamond's meta requirements without jacking up your socketing somehow.

Go for the Insightful.

you only have to match gem colors with slot colors if you want the bonus. But you can put whatever gems you want in whatever slot you want. You'll lose the bonus, but then maybe it's not always something that great.