# Diamond Mining News

Canonical page: https://atlas-staging.minestarters.com/news?commodities=diamond

Atlas summarizes and classifies mining-industry stories from third-party publishers. Follow each source link for the original reporting.

Results: 13
Returned: 10
Coverage: drill results, resource updates, and metallurgy; primary commodity matching; all time unless dates are supplied.
Commodity: Diamond (diamond)
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## Kenzoll and MSF plan restart of Namibia’s Sperrgebiet Diamond Mine

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/kenzoll-and-msf-plan-restart-of-namibia-s-sperrgebiet-diamond-mine--4d685a4e-0ae3-4215-878b-1fe07c7b6db1) · [Markdown](https://atlas-staging.minestarters.com/news/kenzoll-and-msf-plan-restart-of-namibia-s-sperrgebiet-diamond-mine--4d685a4e-0ae3-4215-878b-1fe07c7b6db1.md)
- Original announcement: 2026-10-07T16:16:06.653Z
- Atlas analysis published: 2026-10-07T16:17:46.346Z
- Atlas analysis updated: 2026-10-13T04:03:22.980Z
- Company: Kenzoll Capital
- Original source: [miningtechnology](https://www.mining-technology.com/news/kenzoll-msf-restart-sperrgebiet-diamond-mine/)
- Atlas sentiment: 0.456
- Atlas tags: Maiden Resource

Kenzoll Capital and MSF Commercials have entered a partnership to restart the Sperrgebiet Diamond Mine in Namibia, with an expected investment of $50 million. The project aims to revive diamond production and explore for heavy mineral sands and critical metals on the existing licences.

## Kenzoll Capital partners with MSF Commercials to revive Namibia diamond mine

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/kenzoll-capital-partners-with-msf-commercials-to-revive-namibia-diamond-mine--ff8dc4d9-5cc1-4535-8f46-347c4300490a) · [Markdown](https://atlas-staging.minestarters.com/news/kenzoll-capital-partners-with-msf-commercials-to-revive-namibia-diamond-mine--ff8dc4d9-5cc1-4535-8f46-347c4300490a.md)
- Original announcement: 2026-10-07T09:29:00.000Z
- Atlas analysis published: 2026-10-07T13:19:18.504Z
- Atlas analysis updated: 2026-10-07T13:19:18.504Z
- Company: Kenzoll Capital
- Original source: [miningweekly](https://www.miningweekly.com/article/kenzoll-capital-partners-with-msf-commercials-to-revive-namibia-diamond-mine-2026-10-07)
- Atlas sentiment: 0.448
- Atlas tags: Nearology Play

Kenzoll Capital has partnered with MSF Commercials to restart operations at the Sperrgebiet diamond mine in Namibia. The investment, expected to reach $50 million, will focus on diamonds while exploring for heavy mineral sands and critical metals.

## Karowe diamond mine underground project, Botswana – update

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/karowe-diamond-mine-underground-project-botswana-ndash-update--f4acdd05-5d21-4554-8b18-3778304b31f3) · [Markdown](https://atlas-staging.minestarters.com/news/karowe-diamond-mine-underground-project-botswana-ndash-update--f4acdd05-5d21-4554-8b18-3778304b31f3.md)
- Original announcement: 2026-09-03T22:00:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Lucara Diamond Corp
- Original source: [miningweekly](https://www.miningweekly.com/article/karowe-diamond-mine-underground-project-botswana-update-2026-09-04)
- Atlas sentiment: 0.51
- Atlas tags: Probable Reserve, Resource Update

Lucara Diamond Corp has updated its Karowe underground project in Botswana, supported by a 2025 feasibility study. The project includes 37.3 million tonnes of probable reserves at 12.2 cpht and is expected to reach full-scale underground production in the first half of 2028.

## LUCARA ANNOUNCES UPDATED FEASIBILITY STUDY FOR KAROWE UNDERGROUND PROJECT

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/lucara-announces-updated-feasibility-study-for-karowe-underground-project--feb6fb68-7c27-4a56-ba85-1fe86f5b48ff) · [Markdown](https://atlas-staging.minestarters.com/news/lucara-announces-updated-feasibility-study-for-karowe-underground-project--feb6fb68-7c27-4a56-ba85-1fe86f5b48ff.md)
- Original announcement: 2026-01-05T22:00:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Lucara Diamond Corp. (LUC)
- Original source: [tmx](https://money.tmx.com/en/quote/LUC/news/8176680465507768/lucara-announces-updated-feasibility-study-for-karowe-underground-project)
- Atlas sentiment: 0.717
- Atlas tags: QP/CP Signed, NI 43-101 Compliant, DFS-Supporting, Cut-off Disclosed, Probable Reserve, Indicated Resource, Inferred Resource, Dilutive Growth, Financial Risk, Resource Update

Lucara Diamond Corp. announced an updated Feasibility Study for its Karowe Underground Project in Botswana, extending the mine life by approximately 10 years. The study, prepared in accordance with NI 43-101, confirms the project's economic viability with an after-tax unlevered NPV 8% of $432.1 million and total life of mine diamond recoveries of 4.5 million carats. It incorporates updated resource and reserve estimates, capital and operating costs, and a revised mining plan.

## STAR DIAMOND CORPORATION ANNOUNCES THIRD QUARTER 2024 RESULTS

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/star-diamond-corporation-announces-third-quarter-2024-results--b2798e5f-9b72-4b36-80f5-91719691e55c) · [Markdown](https://atlas-staging.minestarters.com/news/star-diamond-corporation-announces-third-quarter-2024-results--b2798e5f-9b72-4b36-80f5-91719691e55c.md)
- Original announcement: 2024-11-07T21:30:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Star Diamond Corporation (DIAM)
- Original source: [tmx](https://money.tmx.com/en/quote/DIAM/news/8010550711828978/star-diamond-corporation-announces-third-quarter-2024-results)
- Atlas sentiment: 0.241
- Atlas tags: Grade Improvement, Contained Metal Growth, Resource Update

Star Diamond Corporation reported its Q3 2024 financial results, highlighting a significant increase in diamond grade (18.6 cpht) and total carats in its 2024 Mineral Resource Estimate for the Star-Orion South project. However, the company reported an increased net loss of $1.4 million for the quarter and noted that additional financing will be required to fund future operations.

## Diamond Results from this Year's Delineation Drilling, Sequoia Kimberlite Complex, NT

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/diamond-results-from-this-year-s-delineation-drilling-sequoia-kimberlite-complex--6b32d27f-69c4-43e8-beec-c38b4ce56215) · [Markdown](https://atlas-staging.minestarters.com/news/diamond-results-from-this-year-s-delineation-drilling-sequoia-kimberlite-complex--6b32d27f-69c4-43e8-beec-c38b4ce56215.md)
- Original announcement: 2022-12-05T13:55:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Arctic Star Exploration Corp. (ADD)
- Original source: [tmx](https://money.tmx.com/en/quote/ADD/news/7406741505040337/diamond-results-from-this-year-s-delineation-drilling-sequoia-kimberlite-complex)
- Atlas sentiment: 0.234
- Atlas tags: QA/QC Disclosed, Infill Drilling

Arctic Star Exploration Corp. has released 2022 caustic fusion diamond results from the Sequoia Kimberlite complex in the Northwest Territories. The results show a diamond population that is dominantly white and clear, supporting the potential for high-value commercial stones.

## Arctic Star Announces Diamond Results for the Arbutus 2022 Kimberlite Discovery at Diagras Project, Lac de Gras, NT

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/arctic-star-announces-diamond-results-for-the-arbutus-2022-kimberlite-discovery--51bb32b1-dcc0-47b9-9658-3f3227a7593e) · [Markdown](https://atlas-staging.minestarters.com/news/arctic-star-announces-diamond-results-for-the-arbutus-2022-kimberlite-discovery--51bb32b1-dcc0-47b9-9658-3f3227a7593e.md)
- Original announcement: 2022-09-14T17:30:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Arctic Star Exploration Corp. (ADD)
- Original source: [tmx](https://money.tmx.com/en/quote/ADD/news/5429539352073669/arctic-star-announces-diamond-results-for-the-arbutus-2022-kimberlite-discovery-)
- Atlas sentiment: 0.378
- Atlas tags: QA/QC Disclosed, Step-Out Extension

Arctic Star has announced diamond-positive caustic fusion results from the Arbutus kimberlite at the Diagras Project. The results show 43 stones per 100kg, representing the second-best result to date for the project, with encouraging larger stone counts (>0.3mm).

## Arctic Star Completes Successful Spring 2022 Exploration Program, Diagras Project NT

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/arctic-star-completes-successful-spring-2022-exploration-program-diagras-project--be8cb4e6-3359-4c66-9863-8ff65339e924) · [Markdown](https://atlas-staging.minestarters.com/news/arctic-star-completes-successful-spring-2022-exploration-program-diagras-project--be8cb4e6-3359-4c66-9863-8ff65339e924.md)
- Original announcement: 2022-06-13T17:35:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Arctic Star Exploration Corp. (ADD)
- Original source: [tmx](https://money.tmx.com/en/quote/ADD/news/8580790798510205/arctic-star-completes-successful-spring-2022-exploration-program-diagras-project)
- Atlas sentiment: 0.604
- Atlas tags: QP/CP Signed, QA/QC Disclosed, No Grade Reported, Maiden Discovery, Infill Drilling, Exploration Drilling

Arctic Star Exploration Corp. has completed a successful spring 2022 exploration program on its Diagras project in the Northwest Territories, including the discovery of the new Arbutus kimberlite and further delineation of the Sequoia kimberlite complex. The program involved 1,098 meters of drilling, with samples from both kimberlites sent for caustic fusion to determine diamond content. The company also received a $168,000 Mining Incentive Grant for its efforts.

## Arctic Star Discovers New Kimberlite, "Arbutus" Diagras Project NT

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/arctic-star-discovers-new-kimberlite-arbutus-diagras-project-nt--3eb78880-0d27-4d9d-8e03-4c21aaa7cb3d) · [Markdown](https://atlas-staging.minestarters.com/news/arctic-star-discovers-new-kimberlite-arbutus-diagras-project-nt--3eb78880-0d27-4d9d-8e03-4c21aaa7cb3d.md)
- Original announcement: 2022-06-01T12:40:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Arctic Star Exploration Corp. (ADD)
- Original source: [tmx](https://money.tmx.com/en/quote/ADD/news/4726401657003568/arctic-star-discovers-new-kimberlite-arbutus-diagras-project-nt)
- Atlas sentiment: 0.378
- Atlas tags: QA/QC Disclosed, Step-Out Extension

Arctic Star Exploration Corp. has announced the discovery of the 'Arbutus' kimberlite at its Diagras project in the Northwest Territories. Early geological descriptions note the presence of coarse olivines and abundant mantle indicator minerals, suggesting diamond potential.

## InvestmentPitch Media Video Discusses Tres-Or Resources' First Macrodiamond Drill Program at its Guigues Kimberlite Pipe in Québec - Video Available on Investmentpitch.com

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/investmentpitch-media-video-discusses-tres-or-resources-first-macrodiamond-drill--d1060a8c-6f0a-455f-a92c-5bea094490aa) · [Markdown](https://atlas-staging.minestarters.com/news/investmentpitch-media-video-discusses-tres-or-resources-first-macrodiamond-drill--d1060a8c-6f0a-455f-a92c-5bea094490aa.md)
- Original announcement: 2021-11-18T08:05:00.000Z
- Atlas analysis published: Unknown date
- Atlas analysis updated: Unknown date
- Company: Tres-Or Resources (TRS)
- Original source: [tmx](https://money.tmx.com/en/quote/TRS/news/7406078969379269/investmentpitch-media-video-discusses-tres-or-resources-first-macrodiamond-drill)
- Atlas sentiment: 0.223
- Atlas tags: Step-Out Extension

Tres-Or Resources has completed its first 1,500-metre macrodiamond drill program at the Guigues Kimberlite Pipe in Québec. The program encountered significant kimberlite, providing samples for macrodiamond testing, with microdiamond chemistry suggesting high-value Type II potential.

# Atlas tag definitions

- **Bonanza Intercept:** Exceptionally high-grade zone, well above the deposit-type norm.
- **True Width Disclosed:** Actual thickness perpendicular to structure is stated, not just downhole length.
- **Step-Out Extension:** Mineralization extended beyond the previously known limit.
- **QA/QC Disclosed:** Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
- **Compositing Transparent:** Cut-off grade and internal dilution rules are clearly stated for reported intervals.
- **Refractory Ore:** Complex mineralogy requiring oxidation or other special processing before recovery.
- **Apparent Width Only:** Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
- **Stale Data Re-release:** Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
- **No QA/QC Disclosure:** Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
- **Metal Equivalent Opaque:** Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.
- **Cut-off Undisclosed:** Cut-off grade not disclosed — cannot assess comparability to prior estimates or peers.
- **Deleterious Elements Present:** Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
- **Infill Drilling:** Confirmatory drilling to raise resource confidence, not new discovery.
- **Nearology Play:** Value premise rests on proximity to a known deposit rather than own results.
- **Measured Resource:** Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.
- **Indicated Resource:** Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
- **Proven Reserve:** Measured Resource with demonstrated economic viability after applying modifying factors.
- **Probable Reserve:** Indicated Resource with demonstrated economic viability after applying modifying factors.
- **Category Upgrade:** Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal.
- **Tonnage Growth:** Significant tonnage increase (≥15%) vs prior estimate with grade maintained or improved.
- **Grade Improvement:** Average resource grade improved vs prior estimate — better deposit economics.
- **Contained Metal Growth:** True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.
- **QP/CP Signed:** Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
- **Cut-off Disclosed:** Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
- **JORC Compliant:** Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
- **NI 43-101 Compliant:** Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
- **Inferred Resource:** Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
- **All Inferred:** 100% of resource is Inferred category — very early stage, no engineering confidence.
- **Grade Decline:** Average grade dropped >5% vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling.
- **Tonnage Decline:** Resource tonnage decreased vs prior estimate — pit optimization removed marginal material or geological model revised down.
- **Category Downgrade:** Resource confidence decreased — Measured downgraded to Indicated, or Indicated to Inferred. Unusual and concerning.
- **Contained Metal Decline:** Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.
- **Dilutive Growth:** Tonnage increased but contained metal flat or down — likely from lower cut-off grade, not geological expansion.
- **Cut-off Lowered:** Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.
- **Cut-off Undisclosed:** Cut-off grade not disclosed — cannot assess comparability to prior estimates or peers.
- **Historical Estimate Only:** Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling.
- **Stale Estimate:** Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
- **No Contained Metal:** Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
- **No QP/CP Disclosure:** No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience.
- **Maiden Resource:** First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component.
- **Resource Update:** Revised estimate for an existing resource — compare to prior to assess progress.
- **PEA-Supporting:** Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
- **PFS-Supporting:** Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
- **DFS-Supporting:** Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
- **High Recovery:** Recovery at or above the exceptional band for the commodity and processing route.
- **Pilot Scale Complete:** Pilot or demonstration plant testing completed under continuous operation.
- **Free Milling:** Simple, clean ore amenable to standard processing without oxidation.
- **Multi-Domain Tested:** Variability across ore domains (oxide, transition, fresh) has been addressed.
- **Recovery Improving:** Recovery improved versus a like-for-like prior test program on the same domain and route.
- **Low Recovery:** Recovery below the weak band for the commodity and processing route.
- **Bench Scale Only:** Only preliminary bench tests completed — no locked-cycle or pilot work.
- **Refractory Ore:** Complex mineralogy requiring oxidation or other special processing before recovery.
- **Single Domain Only:** Testing limited to one composite or domain — representativeness not established.
- **Recovery Stagnant:** No improvement across multiple test programs on comparable material.
- **Theoretical Recovery Only:** Only theoretical or liberation-derived recovery reported, with no actual test result.
- **Heap Leach Route:** Processing via heap leach — lower CAPEX and OPEX, lower recovery expected.
- **Mill Route:** Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
- **Gravity Route:** Gravity separation forms a material part of the flowsheet.
- **POX/BIOX Route:** Pressure or bio-oxidation for refractory ore — high CAPEX and OPEX.
- **Byproduct Commodity:** The tested commodity is a byproduct rather than the primary economic driver.