The nearest visible gem is a destination, while the underground passage determines whether reaching it is a sensible next move.
Read the material around the reward
Diamonds Digger describes searching underground for diamonds and gems while avoiding rocks and obstacles. Begin with the space surrounding a visible reward. A bright diamond is easy to notice, but the nearby rock arrangement tells you more about the approach. Ask what route would connect the current position to that gem and which visible objects make the route uncertain before committing to the collection attempt.
Distinguish an obstacle from unexplored space
An unvisited area and a dangerous rock are not necessarily handled by the same action. Use the game's actual feedback to learn what can be traversed or dug and what must be avoided. The stored record gives only mouse or touch, not the digging gesture or any rule about falling material. Avoid importing a rock behavior from another mining game; observe the objects in this one before planning around them.
Keep the next decision near enough to inspect
A long imagined route toward several distant gems can hide an immediate obstacle. Choose a short section you can explain, reach or test it using the displayed controls, then inspect what becomes visible afterward. The aim is not to collect the largest number of rewards in a single unexamined gesture. It is to connect each underground movement with the arrangement currently on screen, preserving a clear understanding of how the next diamond can actually be approached.
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