Skull Island Reward

I have fully exposed the skull island, but have not gotten the gem reward (in fact, progress meter is still zero). Is there another skull island? Anyone having the same problem . . .

 

Can you post a picture of both

 

Mister Owl You just explored wrong island. I have the same situation earlier

 

Thanks Denis, then I will keep plugging away at it!

 

Mister Owl Look for opposite side from this island on the map. North

 

There is Skull island to the South and then there is Dead Man's Atoll that also looks like a skull

 

I'll put the coordinates up in the spoiler forum in a bit. Just know that the skull island that you found is A skull island but not THE skull island(Dead Man's Atoll)