GMDMF (Gem Diamonds) GF Score: 40/100 (As of Sep. 07, 2026) — 22% Below Median

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Director of Data and Quant Analytics at GuruFocus
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Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

GMDMF Gem Diamonds Ltd GMDMF
40 GF Score
Price $0.11
GF Value $0.03
Valuation Significantly Overvalued
! 8 Warning Signs
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What is Gem Diamonds GF Score?

Gem Diamonds GMDMF 40 GF Score is 40 as of Sep. 07, 2026, which is 22% below its 10-year median of 51.00. GuruFocus rates GMDMF with a GF Score™ of 40/100 and a GF Value™ of $0.03 (Significantly Overvalued). The stock has 8 warning signs investors should review.

Gem Diamonds has the GF Score of 40, which implies that the company might have Worst future performance potential, or not enough data.

The GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation, which has been found to be closely correlated to the long-term performances of stocks by backtesting from 2006 to 2021. The stocks with a higher GF Score generally generate higher returns than those with lower GF Scores. Therefore, when picking stocks, investors should invest in companies with high GF Scores. The GF Score ranges from 0 to 100, with 100 as the highest rank.

GF Score takes following five key aspects into consideration:

1. Financial Strength : 3/10
2. Profitability Rank : 6/10
3. Growth Rank : 4/10
4. GF Value Rank : 1/10
5. Momentum Rank : 2/10

Each one of these components is ranked and the ranks also have positive correlation with the long term performances of stocks. The GF score is calculated using the five key aspects of analysis. Through backtesting, we know that each of these key aspects has a different impact on the stock price performance. Thus, they are weighted differently when calculating the total score. The Profitability Rank and the Growth Rank are weighted fully, while other parameters have less weight.

Based on research and backtesting result, GuruFocus believes Gem Diamonds might have Worst future performance potential, or not enough data.

Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.

Gem Diamonds  (OTCPK:GMDMF) GF Score Explanation

Based on the historical long-term performances among five valuation aspects, the GF Score is found to be closely correlated to the long-term performances of stocks. It ranges from 0 to 100, with 100 as the highest. GuruFocus divided GF Score into following 5 categories:

GF Score Performance Potential and All-in-One Screener Examples (1)
91 - 100Highest outperformance potential
81 - 90Good outperformance potential
71 - 80Likely to have average performance
51 - 70Poor future performance potential
0 - 50Worst future performance potential, or not enough data

(1) These are some simple examples. You can access our GF Score filter under All-in-One Screener’s Fundamental tab.

Gem Diamonds GF Score Related Terms

GMDMF vs HL: GF Score Comparison

For the Other Precious Metals & Mining subindustry, Gem Diamonds's GF Score, along with its competitors' market caps and GF Score data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.

Gem Diamonds GF Score vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Gem Diamonds's GF Score distribution charts can be found below:

* The bar in red indicates where Gem Diamonds's GF Score falls into.


GMDMF
40GF Score
Gem Diamonds Ltd GMDMF
GF Score is just one metric. See GF Score™, valuation, warning signs, and more.
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Frequently Asked Questions Learn more about GF Score →
What does a GF Score of 40 mean?
Gem Diamonds (GMDMF) has a GF Score of 40 as of Sep. 07, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Gem Diamonds and its competitors. This is 22% below median its historical median of 51.00. Over the past decade, Gem Diamonds' GF Score has ranged from 28.00 to 81.00.
Is Gem Diamonds' GF Score too high?
Gem Diamonds' current GF Score of 40 is 22% below median its 10-year median of 51.00. Over the past 10 years, this metric has ranged from a low of 28.00 to a high of 81.00. Overall, Gem Diamonds has a GF Score™ of 40/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Gem Diamonds' GF Score compare to HL?
Gem Diamonds' GF Score of 40 can be compared against companies in the Metals & Mining industry. Historically, Gem Diamonds' own GF Score has ranged from 28.00 to 81.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good GF Score for a Metals & Mining company?
A good GF Score depends on the Metals & Mining industry context. However, GF Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high GF Score mean?
A high GF Score can signal that a stock is expensive relative to its fundamentals. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Gem Diamonds and its competitors. Gem Diamonds's current GF Score is 40, which is 22% below median its own 10-year median of 51.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Gem Diamonds stock overvalued right now?
Based on GuruFocus' analysis, Gem Diamonds (GMDMF) is currently considered Significantly Overvalued. The stock's GF Value™ is $0.03, compared to a current price of $0.11 — trading 277% above its estimated fair value. The current GF Score is 40, which is 22% below median its 10-year median of 51.00. Gem Diamonds' overall GF Score™ is 40/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Score calculated?
GF Score is calculated from a company's financial statements. For Gem Diamonds (GMDMF), the current GF Score is 40 as of Sep. 07, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Gem Diamonds (GMDMF) Overvalued in 2026?

Based on GuruFocus' analysis, Gem Diamonds stock appears to be overvalued. The current stock price of $0.11 is trading 277% above its estimated GF Value™ of $0.03. GuruFocus considers Gem Diamonds to be Significantly Overvalued.

Key valuation signals for GMDMF:

  • GF Score: 40 (22% below median its 10-year median of 51.00)
  • GF Value™: $0.03 vs. price of $0.11 (277% above fair value)
  • GF Score™: 40/100 with 8 warning signs

No single metric tells the full story. See the GMDMF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Gem Diamonds Business Description

Other Exchanges GEMDl:UKGEMD:UKZVW:Germany
Address 2 Eaton Gate, London, GBR, SW1W 9BJ
Gem Diamonds Ltd is a United Kingdom-based company engaged in the exploration and development of diamond mines. The company's geographical segments include Lesotho (diamond mining activities); Belgium (sales, marketing, and manufacturing of diamonds); and BVI, RSA, the UK, and Cyprus (technical and administrative services) and Botswana (diamond mining activities, currently on care and maintenance). It generates maximum revenue from the Belgium region. Its projects include Letseng Diamond mine and Ghaghoo Diamond mine. The company's revenue is derived from mining activities, polished manufacturing margins, and diamond analysis and manufacturing services.
40GF Score

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GF Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$0.11
Price
$0.03
GF Value