So we've had this update, adding bonus gems from deposits and rare gems.
I have been hitting quite a few gem nodes, I am yet to get any of these new rare gems, I also am not sure how many bonus gems I got, because I had no special message, nor have I noticed particularly many more gems per node.
Low tier gem nodes are absolute crap. Why do greenstone deposits give 1-3 raw greenstone using gem mining tools? Meanwhile I can go kill things for 15 minutes (roughly the same time it takes for the deposit to respawn) and chances are I end up with a lot more than 3 greenstone. This is valid for all low tier gems, their deposit nodes are just not worth it, from greenstone to topaz.
Boost the deposit output, by a lot. Make them drop at least 5 or 10, with chances for more. Nobody is getting rich on greenstone mining anyway.