Known primarily for producing high-quality colourless diamonds, Diavik has occasionally yielded yellow stones—but purple diamonds are an exceptional rarity, making this latest find both scientifically significant and symbolically poignant.
The discovery was quietly shared by Rio Tinto, the mine’s operator, via a social media post that described the find as a “unique discovery” and a “pleasant surprise.” According to the company, the vivid hue may be the result of trace hydrogen or internal distortions in the diamond’s crystal lattice—a formation anomaly caused by extreme pressure deep within the Earth’s mantle.
“The shape of the rough diamond is known as a ‘makeable,’ which means it will likely be cut into a single polished stone,” Rio Tinto noted in its post.
Since production began in 2003, Diavik has produced over 140 million carats of rough diamonds. Coloured diamonds, however, account for less than 1% of the mine’s output. Among these, purple diamonds are the rarest, often appearing in purplish-pink or violet hues rather than a pure, saturated purple.
The newly unearthed gem is expected to be polished and possibly offered for sale or display, though Rio Tinto has not disclosed where the stone will eventually be placed—whether in private hands, an international auction, or a Canadian museum.
This isn't the first time Diavik has unearthed something remarkable in its waning years. The purple diamond follows recent headlines surrounding the recovery of a 158.2-carat yellow diamond and a 50-million-year-old petrified log—evidence of the region’s geological richness and ongoing ability to surprise.
Though modest in size, the purple diamond could command significant interest in the market. Globally, such stones fetch high premiums due to their extreme rarity and distinctive beauty—making the Canadian find all the more noteworthy.
As Diavik’s mine life draws to a close, this vivid purple gem serves as a fitting final flourish: a testament to the enduring mystery and magic of Earth’s natural treasures, even in their final chapter.
