Dominion Diamond Corporation Files Updated Technical Report for the Ekati Diamond Mine

15 September 2016

YELLOWKNIFE, NT (September 15, 2016) - Dominion Diamond Corporation (TSX: DDC, NYSE: DDC) (the "Company" or "Dominion") is pleased to announce the Company has filed a technical report under National Instrument 43-101 for the Ekati Diamond Mine which includes an updated mineral reserves and mineral resources statement with an effective date of July 31, 2016. The report, entitled "Ekati Diamond Mine, Northwest Territories, Canada, NI 43-101 Technical Report", may be found under the Company's profile on SEDAR and on the Company's web site at www.ddcorp.ca.