Beast Makers - Terrace Village
In order to get the remaining gems on top of the walkways towards the end of the Terrace Village level you will need to glide to the same platform you see me looking at in the screen shot above. It's right across from the Return Home portal at the very end of the level.
Once you're on this platform you'll want to climb up the hidden stairs on the wall to your right. The tan colored part of the wall actually has three jumps which you can follow upwards (shown in my screen shot above). At the top of this area, collect the gems and then get ready to glide one more time for the rest.
Where you see me standing in the screen shot below, from there glide around the wall and land on the platform where you see the gems.