The Hardest Known Mineral

Did one vexed villager scream: it is mine?
Meaning his home. Now there is a mine!
It has seen families being displaced in Zim
yet it shouldn’t be a cruel curse but a boom.
A see-through that is often unseen but flown.
Is it not crystal clear that it’s a precious stone?
When it is striking, sunny and free from flaws,
it is vastly prized as a costly pebble that glows.
Excavated and elevated, it is used as an abrasive.
How dear is a piece of diamond? It is exclusive!