Repost from celaria forum:
Im wanting to run 100% of this game, and Im only struggling with this last gem. I spent like 40min looking for it, its not even visible. Here are the ones I did manage to find:
[spoiler]http://i.imgur.com/XJIENF5.png
http://i.imgur.com/72UrXAZ.png
http://i.imgur.com/txoOs9G.png
http://i.imgur.com/v0Fo3de.png
http://i.imgur.com/TyIkHre.png[/spoiler]
Like is the gem in a block, or way off map? This is kinda taking the fun out of everything. :/

Repost from celaria forum: Lewa (Creator of the game):
Well,... seems that you have discovered a bug :? 

http://public.celaria.com/pictures/sphere_placement_error.png

There is an additional sphere placed inside of a block under another sphere. This shouldn't be the case. (The maximum number of spheres placed on a map shouldn't exceed 5.)

Maybe i accidently made a copy of the sphere which then somehow ended up inside of the block. 

So yes, as it currently stands it's not possible to collect this sphere in the alpha. :P
(Will be fixed in the final game though.)
-------------------------------------------------
Looks like the category will have to be like 97%