Ali Hafed was a wealthy man.

And he desperately wanted to find diamonds.

So he came up with a plan.

After selling his large farm, he left his family and began his search.

The trip was in vain.

He found no diamonds, and the journey ultimately led to his death.

However, the new owner of Ali's property made a startling discovery.

Right there, under the soil of that farm, was the most magnificent diamond mine in the history of mankind.

The moral? Dig first on your own property.

Most businesses are sitting on a diamond mine of existing customers.

But yet they leave them untapped.

It’s far easier to increase revenue from past customers than from new ones.

If you’re searching for diamonds, first look under your feet.