The kimberlite has been identified around 30m to the northwest of the discovery holes at Faraday 2 corridor.

Kennady Diamonds CEO Patrick Evans said: "Drill results from the first four delineation holes at Faraday 2 indicate that the kimberlite is trending on strike to the northwest.

"We plan to continue testing the continuity of Faraday 2 further to the northwest and will also test the continuity to the southeast of the discovery holes."

Until 2014, Kennady Diamonds recovered around one ton kimberlite from Faraday.

Core samples analyzed at the Geoanalytical Laboratories Diamond Services showed 4.76 carats greater than 0.85mm with a commercial sample grade of 4.54 carats per ton.

The company said bulk sampling of Kelvin kimberlite is progressing well and is being recovered using two reverse-circulation drill rigs.

So far, 300 tons has been recovered and most of it has been delivered to the Saskatchewan Research Council.