# Arctic Star Reports, Nitrogen Free Diamonds, Further Encouragement that Sequoia may have >50ct Diamonds Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/arctic-star-reports-nitrogen-free-diamonds-further-encouragement-that-sequoia-ma--f642da2d-07d9-40ed-9cec-845faabe9339 Original source: https://money.tmx.com/en/quote/ADD/news/7694872823710173/arctic-star-reports-nitrogen-free-diamonds-further-encouragement-that-sequoia-ma Publisher: tmx Original announcement: 2022-05-17T17:10:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Arctic Star Exploration Corp. - Ticker: ADD - Exchange: TSX - Region: Northwest Territories - Primary commodity: Diamond - Secondary commodities: None reported - Document categories: Drill results, Other - Extracted: 2026-09-19 17:07:25 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Arctic Star Exploration Corp. reported that 50% of the 12 diamonds analyzed from the Sequoia kimberlite are high-value, nitrogen-free Type IIa diamonds. This result, confirmed via FTIR spectrometry, supports the potential for the project to host large \(>50ct\) high-value gems. Reasoning: The announcement of a high concentration of Type IIa diamonds \(50% vs 2% global\) is a highly material discovery signal for diamond value, even though the sample size is small \(12 stones\). - Positive factor: High proportion of Type IIa diamonds \(50%\) significantly exceeds global average \(2%\) - Positive factor: Diamond type study confirms potential for large \(>50ct\) high-value gems - Positive factor: QA/QC disclosed with ISO/IEC 1705 Standard lab and QP sign-off - Positive factor: Indicator mineral chemistry supports diamond type findings Facts used in scoring: 1 ## Classification and evidence **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: Release mentions analysis at an ISO/IEC 1705 Standard lab and a Qualified Person \(Buddy Doyle, AUSIMM\) sign-off. Evidence · text > Saskatchewan Research Council Diamond laboratory in Saskatoon, \(an ISO/IEC 1705 Standard lab\)... The Qualified Person for this news release is Buddy Doyle, AUSIMM **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: Mentions proximity to the Koloa pipe/Ekati mining complex. Evidence · text > The Koloa pipe, part of the Ekati mining complex, 34 kilometers west of the Sequoia kimberlite complex ## Extracted facts Stored fact records: 1. Some facts used in scoring do not have a stored record. ## Drill Results (1) ### Fact 1 [Link to this fact](https://atlas-extractions.minestarters.com/news/arctic-star-reports-nitrogen-free-diamonds-further-encouragement-that-sequoia-ma--f642da2d-07d9-40ed-9cec-845faabe9339#fact-drill-facts-0) #### Identity - Region: northwest territories - Reported Region: northwest territories - Ticker: ADD #### Classification - Sample Type: surface #### Location - Location: Sequoia kimberlite - Loc. Source: document #### QA/QC - QA/QC Methods: standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2022-05-17T00:00:00.000Z Reasoning: The high percentage of Type IIa diamonds is a strong indicator of high-value potential. - Positive factor: High proportion of Type IIa diamonds \(50%\) - Positive factor: Supports potential for >50ct gems - Negative factor: Small sample size \(12 diamonds\) Evidence · text > Analysis of 12 >0.3mm diamonds, recovered in 2021 from the Sequoia kimberlite complex shows 50% are nitrogen free type IIa diamonds #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.