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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.
GuruFocus Profitability Rank ranks how profitable a company is and how likely the company's business will stay that way. It is rated on a scale of 1 to 10 and is based on these factors:
1. Operating Margin %
2. Piotroski F-Score
3. Trend of the Operating Margin % (5-year average). The company with an uptrend profit margin has a higher rank.
4. Consistency of the profitability
5. Predictability Rank
A higher score indicates superior profitability, with companies rated 7 or above considered to have more robust and sustainable profit generation. Conversely, a score of 3 or lower suggests challenges in generating consistent profits.
For the Other Precious Metals & Mining subindustry, Gem Diamonds's Profitability Rank, along with its competitors' market caps and Profitability Rank 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 Profitability Rank vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Gem Diamonds's Profitability Rank distribution charts can be found below:
* The bar in red indicates where Gem Diamonds's Profitability Rank falls into.
GuruFocus Profitability Rank ranks how profitable a company is and how likely the company's business will stay that way.
The rank is rated on a scale of 1 to 10. A higher score indicates superior profitability, with companies rated 7 or above considered to have more robust and sustainable profit generation. Conversely, a score of 3 or lower suggests challenges in generating consistent profits.
Gem Diamonds has the Profitability Rank of 6.
Profitability Rank is not directly related to the Financial Strength. But if a company is consistently profitable, its financial strength will be stronger.
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Gem Diamonds (GMDMF) has a Profitability Rank of 6 as of Jun. 2026. Profitability and Growth ranks a company based on its profit margins and earnings growth. View historical data on Gem Diamonds and its competitors. This is 14% below median its historical median of 7.00. Over the past decade, Gem Diamonds' Profitability Rank has ranged from 5.00 to 8.00.
Is Gem Diamonds' Profitability Rank too high?
Gem Diamonds' current Profitability Rank of 6 is 14% below median its 10-year median of 7.00. Over the past 10 years, this metric has ranged from a low of 5.00 to a high of 8.00. Overall, Gem Diamonds has a GF Score™ of 43/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Gem Diamonds' Profitability Rank compare to HL?
Gem Diamonds' Profitability Rank of 6 can be compared against companies in the Metals & Mining industry. Historically, Gem Diamonds' own Profitability Rank has ranged from 5.00 to 8.00 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 Profitability Rank for a Metals & Mining company?
A good Profitability Rank depends on the Metals & Mining industry context. However, Profitability Rank 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 Profitability Rank mean?
A high Profitability Rank can signal that a stock is expensive relative to its fundamentals. Profitability and Growth ranks a company based on its profit margins and earnings growth. View historical data on Gem Diamonds and its competitors. Gem Diamonds's current Profitability Rank is 6, which is 14% below median its own 10-year median of 7.00. 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 $0.08, compared to a current price of $0.15 — trading 88.5% above its estimated fair value. The current Profitability Rank is 6, which is 14% below median its 10-year median of 7.00. Gem Diamonds' overall GF Score™ is 43/100 with 9 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Profitability Rank calculated?
Profitability Rank is calculated from a company's financial statements. For Gem Diamonds (GMDMF), the current Profitability Rank is 6 as of Jun. 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 $0.15 is trading 88.5% above its estimated GF Value™ of $0.08.
GuruFocus considers Gem Diamonds to be Significantly Overvalued.
Key valuation signals for GMDMF:
Profitability Rank: 6 (14% below median its 10-year median of 7.00)
GF Value™: $0.08 vs. price of $0.15 (88.5% above fair value)
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 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.
43GF Score
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Profitability Rank is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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