It is said that the sparkle from Canadian diamonds mimics the awesome and seductive radiance of the northern lights. Yet until 1991, no one thought diamonds could even be found in Canada—no one except Chuck Fipke and Stu Blusson, who uncovered diamond-rich kimberlite in the Barrens at Point Lake, near Yellowknife, Northwest Territories.

Their spectacular find caused great excitement in international diamond circles and sparked the largest claim-staking rush in Canada since the 1896 Klondike gold rush. Today, Canada is the world’s third-largest producer, by value, of rough stones. Here is the dramatic tale of two determined geologists who risked all and triumphed over incredible odds.