London-based diamond company Stellar reports that its initial bulk samples from a site in the west African nation of Guinea were positive, yielding better-than-expected carat rates and a large diamond 5.55 carats in size, Diamond News reports.
Samples from the Katcha Dyke location at the company's Droujba project revealed nearly 300 metric tons of kimberlite, and 173 carats were harvested from a primary sample of the ore, equaling a rate of 188 carats per hundred metric tons.
Stellar chief executive Karl Smithson noted that this figure was far superior to the 100 carats per hundred metric tons that the company had originally projected. Smithson added that the firm intended to convert a stretch of the dyke to the status of inferred resource, likely between October and December of this year. The Droujba pipe already contains inferred resources of 2.5 million carats of diamonds.