Board Thread:Questions and Answers/@comment-773165-20140706181355/@comment-5956378-20140706200856

It was probably AwesomePango's island. According to him, apparently there's a glitch on Android devices that allows structures and decorations to be bought on Gold Island.

The old mine produced 4 diamonds per day, as opposed to the new mine's 1 per day. Which means a daily total of 28 diamonds as opposed to 7. I'm sad about that as well.