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LUCARA AND HB ANNOUNCE GROUNDBREAKING PARTNERSHIP FOR 2020 Sales Agreement for All +10.8 Carat Rough Diamonds Through FY2020

Partnerships & JV

July 15, 2020

PRESS RELEASE

LUCARA AND HB ANNOUNCE GROUNDBREAKING PARTNERSHIP FOR 2020

Sales Agreement for All +10.8 Carat Rough Diamonds Through FY2020

VANCOUVER, July 15, 2020 /CNW/ - (LUC – TSX, LUC – BSE, LUC – Nasdaq Stockholm)

Lucara Diamond Corp. (“Lucara” or the “Company”) is pleased to announce that it has entered

into a definitive supply agreement for the remainder of 2020 with HB Group out of Antwerp,

Belgium (“HB”), in respect of all diamonds produced in excess of 10.8 carats in size from its

100% owned Karowe Diamond Mine in Botswana. Large, high value diamonds in excess of 10.8

carats in size from Karowe account for approximately 70% of Lucara’s annual revenues , and

though the mine has remained fully operational throughout the Covid- 19 pandemic, Lucara

made a deliberate decision not to tender any of its +10.8 carat inventory after early March 2020

amidst the uncertainty caused by the global crisis.

Under the terms of this novel supply agreement with HB, the purchase price paid for Lucara’s

+10.8 carat rough diamonds shall be based on the estimated polished outcome, determined

through state of the art scanning and planning technology, with a true up paid on actual

achieved polished sales thereafter, less a fee and the cost of manufacturing. This unique pricing

mechanism is expected to deliver regular cash flow for this important segment of our

production profile at superior prices.

ADVANTAGES:

• Regular cash flow for Lucara using a superior pricing mechanism

• Significant potential revenue upside, particularly suited for Lucara’s large, exceptional

diamonds

• Increased tax revenue and additional beneficiation opportunities for the Government of

Botswana

• The creation of a more efficient, streamlined, supply chain that achieves complete

alignment between Lucara and HB to maximize the value of each +10.8 carat diamond

produced at Karowe

Eira Thomas, CEO commented: “Building on the partnership established for the manufacturing

of the Sewel ô earlier this year , Lucara is pleased to have now s ecured a broader supply

agreement with HB to purchase all of our +10.8 carat rough diamonds, through to year-end.

This agreement will deliver regular revenues on superior pricing terms to those currently being

achieved at tender , and, helps position Lucara to move forward with key underground

expansion activities for Karowe in 2020. It is our strong view that the success of our industry

in these very uncertain times , requires better alignment between producers, manufacturers,

and retailers to establish a healthier, more efficient global diamond supply chain. We are excited

to be working with HB to support this new paradigm.”

Oded Mansori, Co-Founder of HB Group, commented: “Aligned in our core values and beliefs,

HB is pleased to be entering into this definitive supply agreement with Lucara, turning our long-

term vision for transparency and sustainability in the value chain into reality. HB represents a

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new, innovative approach, using technologies that nullify speculation in favor of a stronger eco-

system, the first of its kind for our industry.”

Eira Thomas

President and Chief Executive Officer

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For further information, please contact:

North America Christine Warner, Investor Relations & Communications

+1 604 689-7842 | [email protected]

Sweden Robert Eriksson, Investor Relations & Public Relations

+46 701 112615 | [email protected]

UK Public Relations Emily Moss / Jos Simson, Tavistock

+447788554035 | [email protected]

ABOUT LUCARA

Lucara is a leading independent producer of large exceptional quality Type IIa diamonds from

its 100% owned Karowe Mine in Botswana and owns a 100% interest in Clara Diamond Solutions,

a secure, digital sales platform positioned to modernize the existing diamond supply chain and

ensure diamond provenance from mine to finger. The Company has an experienced board and

management team with extensive diamond development and operations expertise. The

Company operates transparently and in accordance with international best practices in the

areas of sustainability, health and safety, environment, and community relations.

ABOUT HB GROUP

The HB Group is a technology company focused on diamonds, based in Antwerp. Given the

extensive experience in the diamond sector of several of the Group's co-founders the company

has broadened the concept of transparency with a focus on the end to end supply chain

management in order to simplify the complexities and challenges of global diamonds supply

chains.

The information in this release is subject to the disclosure requirements of the Company under

the EU Market Abuse Regulation. This information was publicly communicated on July 15, 2020

at 2:00 pm Pacific Time.

CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS

Certain of the statements made and contained herein and elsewhere constitute forward-looking

statements as defined in applicable securities laws. Generally, these forward- looking

statements can be identified by the use of forward- looking terminology such a s "expects",

"anticipates", "believes", "intends", "estimates", "potential", "possible" and similar expressions,

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or statements that events, conditions or results "will", "may", "could" or "should" occur or be

achieved.

Forward-looking statements are based on the opinions and estimates of management as of the

date such statements are made, and they are subject to a number of known and unknown risks,

uncertainties and other factors which may cause the actual results, performance or

achievements of the Company to be materially different from any future results, performance

or achievement expressed or implied by such forward- looking statements. The Company

believes that expectations reflected in this forward-looking information are reasonable, but no

assurance can be given that these expectations will prove to be accurate and such forward-

looking information included herein should not be unduly relied upon.

In particular, this release may contain forward looking information pertaining to the following:

the benefits of the supply arrangement with HB, the ultimately achieved pricing/revenues and

predictability of cash flows from the supply arrangement with respect to Karowe diamonds,

the increased opportunities for the Government of Botswana, anticipated production from the

Karowe mine, the ability of the Company to progress its planned underground expansion

activities for the Karowe mine in 2020 and other forward looking information.

There can be no assurance that such forward looking statements will prove to be accurate, as

the Company's results and future events could differ materially from those anticipated in this

forward-looking information as a result of the rapidly evolving regulatory landscape and market

conditions related to the COVID -19 pandemic, and the operational and travel bans that have

been imposed or may be expanded into regions impacting Lucara’s operations, those factors

discussed in or referred to under the heading "Risks and Uncertainties"' in the Company's most

recent Annual Information Form av ailable at http://www.sedar.com, as well as changes in

general business and economic conditions, changes in interest and foreign currency rates, the

supply and demand for, deliveries of and the level and volatility of prices of rough diamonds,

costs of power and diesel, acts of foreign governments and the outcome of legal proceedings,

inaccurate geological and recoverability assumptions (including with respect to the size, grade

and recoverability of mineral reserves and resources), and unanticipated operational difficulties

(including failure of plant, equipment or processes to operate in accordance with specifications

or expectations, cost escalations, unavailability of materials and equipment, government action

or delays in the receipt of government appro vals, industrial disturbances or other job actions,

adverse weather conditions, and unanticipated events relating to health safety and

environmental matters).

Accordingly, readers are cautioned not to place undue reliance on these forward- looking

statements which speak only as of the date the statements were made, and the Company does

not assume any obligations to update or revise them to reflect new events or circumstances,

except as required by law.