1.8 carat diamond cost

Macrodiamond Drill Program Completed at Tres-Or's Guigues Pipe in Quebec

Tres-Or Resources Ltd. (TSXV: TRS) (OTC Pink: TRSFF) ("Tres-Or" or the "Company") is pleased to report completion of the Company's first macrodiamond drill program at the Guigues Kimberlite Pipe in southwestern Québec. The planned 5 holes have been completed to 300.00 m each, providing more than 10 tonnes of kimberlite sample for mini-bulk macrodiamond testing. Four of the holes ended in kimberlite at 300.00 m, and the fifth hole entered metasediment county rock at 262.10 m. The drill was operated 24 hours a day by Forage DCB Drilling Inc. of Rouyn-Noranda, Quebec and finished the entire 1,500 m of HQ (64 mm diameter) core program in one week.

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Figure 1: Schematic Cross Section presenting the November 2021 drilling program for macrodiamond testing of the Guigues Kimberlite Pipe

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Drill holes completed:

TR-21-01: northern set-up, vertical to 300.00 m to end of hole in kimberlite. Top of kimberlite at 33 m.

TR-21-02: northern set-up, inclined 80° south (azimuth 180°) to 300.00 m at end of hole. Country rock metasediments encountered at 262.10. Top of kimberlite at 33.75 m.

TR-21-03: central set-up, vertical to 300.00 m to end of hole in kimberlite. Top of kimberlite at 47.90 m.

TR-21-04: southwestern set-up, vertical to 300.00 m in kimberlite. Top of kimberlite at 51.25 m.

TR-21-05: southwestern set-up, inclined 80° north (azimuth 360°) to 300.00 m in kimberlite at end of hole. Top of kimberlite at 51.10 m.

The kimberlite core will provide the sample for the recovery of macrodiamonds by testing at an independent Canadian laboratory. Following this drill program, Tres-Or anticipates recovering all diamonds greater 0.425 mm in diameter, from a mini-bulk sample total weight in excess of 10 tonnes. Already, approximately 8 tonnes have been collected during this drill program.

Logging of the core was completed on the Timiskaming First Nations Reserve in Notre Dame du Nord, and supports multiple intrusive phases of kimberlite, each with the potential or carrying a different concentration of macrodiamonds.

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Image of Guigues 2021 kimberlite drill core

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Tres-Or's previous sampling programs at Guigues have established the kimberlite carries closely comparable indicator mineral and microdiamond populations to De Beers' Victor Diamond Mine in northern Ontario, as well as demonstrating that more than 75% of the Guigues microdiamonds lack the impurity nitrogen (Type II) similar to most of the largest high value diamonds ever produced around the world. For further information, refer to Tres-Or news releases dated May 5th, April 6th, and January 5th, 2021, for details on Guigues indicator minerals, microdiamond counts, and Type II abundance.

[Note: Type II diamonds are defined as lacking nitrogen; they are equivalent to Type IIa diamonds which are additionally defined as lacking trace boron impurities which results in a blue color, such as the famous Hope diamond. Nitrogen measurements were conducted by the Saskatchewan Research Council Geoanalytical Laboratories Diamond Services ("SRC") on all Guigues +0.150 mm microdiamonds, using the industry-standard technique of micro-Fourier Transform Infrared Spectroscopy (FTIR). SRC does not report boron, thus all analyses lacking nitrogen are reported as Type II.]

Note that although the recovery of Type II microdiamonds from the Guigues Kimberlite is suggestive of the occurrence of larger stones, this does not mean that the Guigues Kimberlite will necessarily host large Type II diamonds.

Tres-Or Resources Ltd. is a Canadian resource company focused on exploring for diamonds and gold resources in the Témiscamingue and Abitibi regions of Québec and is listed on the TSX Venture Exchange under the trading symbol "TRS". Additional information related to the Company is available on SEDAR and on the Company's website (www.tres-or.com).

On behalf of the Board of Directors

"Laura Lee Duffett"

Laura Lee Duffett,
President and CEO

For further information

Laura Lee Duffett, President & CEO: +1 (604) 541-8376 - info@tres-or.com
Dean Claridge, Business Development: +1 (604) 688-8700
Website: www.tres-or.com

Neither the TSX Venture Exchange nor its Regulation Service Provider (as the term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

Qualified Person

Mr. Gordon N. Henriksen, P.Geo. (OGQ #451) the Company's Geologist and Qualified Person (as defined by National Instrument 43-101 Standards of Disclosure for Mineral Projects), logged the core and directed the field program. Mr. Henriksen has reviewed the scientific and technical information in this news release and has approved the disclosure herein.

Forward-Looking Statements

This news release contains projections and forward-looking information that involve various risks and uncertainties, including, without limitation, statements regarding the potential extent of mineralization, resources, reserves, exploration results and plans and objectives of the Company. These risks and uncertainties include, but are not restricted to, the early stage development of the Company and its projects; general business, economic, competitive, political and social uncertainties; capital market conditions and market prices for securities, junior market securities and mining exploration company securities; commodity prices, the amount of geological data available, the uncertain reliability of drilling results and geophysical and geological data and the interpretation thereof and the need for adequate financing for future exploration and development efforts. There can be no assurance that such statements will prove to be accurate. Actual results and future events could differ materially from those anticipated in such statements. These and all subsequent written and oral forward-looking statements are based on the estimates and opinions of management on the dates they are made and are expressly qualified in their entirety by this notice. The Company assumes no obligation to update forward-looking statements should circumstances or management's estimates or opinions change.

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Star Diamond Corporation logo (CNW Group/Star Diamond Corporation)

The scientific and technical information contained in this press release has been prepared and verified by A.C.A. Howe International Limited ("Howe"), under the supervision of Mr. Daniel C. Leroux, M.Sc., P. Geo. and the Mineral Resource estimation methodology under the supervision of Peter Ravenscroft , FAusIMM, of Ravenscroft Mining Advisors, an independent mining consultant, and a Qualified Person ("QP") within the meaning of National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101") of the Canadian Securities Administrators. This Revised Mineral Resources estimate uses diamond industry standard methods which are rigorously applied to the Star and Orion South evaluation data, acknowledging the significant control that fundamental kimberlite geology has on the distribution of diamonds within these deposits.

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About Star Diamond Corporation

Star Diamond is a Canadian-based corporation engaged in the acquisition, exploration and development of mineral properties. Shares of Star Diamond trade on the Toronto Stock Exchange under the trading symbol "DIAM".   Star Diamond's most significant asset is its 100% interest in the Fort à la Corne Project in central Saskatchewan.  These kimberlites are located in close proximity to established infrastructure, including paved highways and the electrical power grid, which provide significant advantages for future mine development.

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Caution Regarding Forward-looking Statements

This press release contains "forward-looking statements" and/or "forward-looking information" (collectively, "forward-looking statements") within the meaning of applicable securities legislation. All statements, other than statements of historical fact, are forward-looking statements. Forward-looking information is often, but not always, identified by the use of words such as "anticipate", "believe", "expect", "plan", "intend", "forecast", "target", "project", "guidance", "may", "will", "should", "could", "estimate", "predict" or similar words suggesting future outcomes or language suggesting an outlook. In particular, statements regarding Star Diamond's future operations, future exploration and development activities or other development plans constitute forward-looking statements. By their nature, statements referring to mineral reserves or mineral resources constitute forward-looking statements.

Forward-looking statements in this press release include but are not limited to statements with respect to the Revised Mineral Resources Estimate; improvement in the Mineral Resource estimate; the re-optimization of the Star and Orion South open pits; the publication of the Technical Report; and the aim of the Company to undertake a PFS and Feasibility Study and timelines.

These forward-looking statements are based on Star Diamond's current beliefs as well as assumptions made by and information currently available to Star Diamond and involve inherent risks and uncertainties, both general and specific. Risks exist that forward-looking statements will not be achieved due to a number of factors including, but not limited to, developments in world diamond markets, changes in diamond prices, risks relating to fluctuations in the Canadian dollar and other currencies relative to the US dollar, changes in exploration, development or mining plans due to exploration results and changing budget priorities of Star Diamond, the impact of changes in the laws and regulations regulating mining exploration, development, closure, judicial or regulatory judgments and legal proceedings, operational and infrastructure risks and the additional risks described in Star Diamond's most recently filed Annual Information Form, annual and interim MDA.

SOURCE Star Diamond Corporation

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