AV9, is the third kimberlite discovered by Stornoway at Aviat's Tremblay Corridor, a location on the Melville Peninsula in Nunavut., which contains diamondiferous kimberlies. AV9 is four kilometers east-southeast to the diamondiferous AV1 kimberlite.

According to Stornoway's CEO Eira Thomas, "The AV9 kimberlite pipe was discovered as a result of a concerted effort to identify the source of a high priority indicator mineral and diamondiferous boulder train within Aviat's 'Eastern Sheet Complex'. The discovery of a new kimberlite pipe within four kilometers of the AV1 and AV4 pipes demonstrates the continuing exploration potential of the Tremblay Corridor and adds exciting kimberlite tonnage potential to the project."