Can't Pack my Gems, Need Help!

Ah crap no one is replying! Should have added a GA!

Send them to a trustable friend or your alt account and then send them back to your account.

Same thing happened with my friend. He sent me the gems and I could pack them. So send it to someone you can trust and it will work out.

If you want, I can help you out with that trade (check my profile, in my opinion I am trustable :D) Add me if you need my help ^^

Have you tried packing them both from browser and the client?

One batch be tradable and other isn't. If the date you created the gems are different, it happens.

It's kind of a bug. Wait a bit and try later. Maybe few hours if you can. If it doesn't work again then you can try the alternatives..

It happens when you turn items into gems that aren't tradable/marketable yet. So for the future just wait until the items are tradable/marketable and all gems will go in one stack.

This happens when you obtain untradable gems while you have tradable ones.
Steam just can't seem to be able to group them together afterwards.
However, they can still be used for creating booster packs without issues

Thanks guys! Will try it out!