Massive 158 Carat Yellow Diamond Unearthed in Canada Near Arctic Circle as Diavik Mine Operations Cease

A massive 158.20 carat yellow diamond was discovered in Canada's Arctic. Learn about the rare find as the iconic Diavik mine concludes its 23-year legacy.

By: AXL Media

Published: Apr 22, 2026, 6:01 AM EDT

Source: Information for this report was sourced from Luxurylaunches

A Historic Discovery in the Frozen North

The Canadian mining industry has recorded a significant geological milestone with the unearthing of a 158.20 carat yellow diamond at the Diavik site. Located approximately 200 kilometers south of the Arctic Circle, this remote operation yielded a gemstone that ranks among the largest of its kind ever found in Canada. According to report data, the stone is one of only five yellow diamonds exceeding the 100 carat threshold to ever be pulled from Canadian soil. This discovery marks the first find of such immense scale in eight years, following the 2018 discovery of a 552 carat yellow diamond that remains a record for the North American continent.

Geological Rarity of Two Billion Year Old Gemstones

The scientific significance of the diamond is rooted in its extreme age, having been formed approximately two billion years ago deep within the Earth. While the Northwest Territories are recognized globally for high quality white diamonds, the presence of colored stones remains a statistical anomaly. Yellow diamonds account for less than 1 percent of the total output at the Diavik facility, making this particular specimen a geological outlier. The rarity of the stone is a result of nature’s meticulous and slow craftsmanship over billions of years, providing a stark contrast to the rapid industrial processes used to retrieve it from the sub-Arctic permafrost.

Operational Fortitude in the Sub-Arctic Wilderness

The recovery of such a substantial gemstone is being credited to the technical expertise required to operate in one of the most hostile environments on the planet. According to Matt Breen, the Chief Operating Officer of Diavik Diamond Mines, the diamond serves as a miracle of nature and a testament to the skill and fortitude of the workforce. The men and women at the site have maintained operations in a challenging sub-Arctic climate, where infrastructure and logistics are constantly tested by extreme temperatures. This human element of the recovery process underscores the intersection of advanced engineering and the pursuit of rare natural resources in the Arctic.