Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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.
Petra DiamondsPDLMF 43 Price-to-Tangible-Book is 0.61 as of Sep. 17, 2026. GuruFocus rates PDLMF with a GF Score™ of 43/100 and a GF Value™ of $1.04. The stock has 2 warning signs investors should review. Among 2,239 Metals & Mining companies, Petra Diamonds ranks worse than 44662.75% on this metric.
The historical rank and industry rank for Petra Diamonds's Price-to-Tangible-Book or its related term are showing as below:
During the past 13 years, Petra Diamonds's highest Price to Tangible Book Ratio was 1.86. The lowest was 0.33. And the median was 0.54.
PDLMF's Price-to-Tangible-Book is not ranked *
in the Metals & Mining industry.
Industry Median: 2.24 * Ranked among companies with meaningful Price-to-Tangible-Book only.
Some businesses have very light assets, such as software companies or insurance agencies. The Price-to-Book Ratio does not work well for these companies. Some companies even have negative equity, so the Price-to-Book Ratio cannot be applied to them.
Petra Diamonds Price-to-Tangible-Book Related Terms
Petra Diamonds Price-to-Tangible-Book Historical Data
* Premium members only.
The historical data trend for Petra Diamonds's Price-to-Tangible-Book can be seen below:
* 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.
For the Other Precious Metals & Mining subindustry, Petra Diamonds's Price-to-Tangible-Book, along with its competitors' market caps and Price-to-Tangible-Book 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.
Petra Diamonds Price-to-Tangible-Book vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Petra Diamonds's Price-to-Tangible-Book distribution charts can be found below:
* The bar in red indicates where Petra Diamonds's Price-to-Tangible-Book falls into.
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called PB Ratio. The difference between Price-to-Tangible-Book Ratio and PB Ratio is that book value other than intangibles are used in the calculation.
Petra Diamonds (PDLMF) has a Price-to-Tangible-Book of 0.61 as of Sep. 17, 2026. Price-to-tangible-book ratio is the ratio of share price to a company's tangible book value per share. View historical data on Petra Diamonds and its competitors. According to the industry distribution chart, Petra Diamonds ranks #999999 out of 2239 companies in the Metals & Mining industry.
Is Petra Diamonds' Price-to-Tangible-Book too high?
Petra Diamonds' current Price-to-Tangible-Book is 0.61. The Metals & Mining industry median Price-to-Tangible-Book is 2.24. Petra Diamonds' value of 0.61 is 72.8% below this industry median. Based on the distribution chart, Petra Diamonds ranks #999999 out of 2239 companies in the Metals & Mining industry, which is in the bottom quartile relative to peers. Overall, Petra Diamonds has a GF Score™ of 43/100, reflecting its overall financial health beyond just this single metric.
How does Petra Diamonds' Price-to-Tangible-Book compare to HL?
According to the Metals & Mining industry distribution chart, Petra Diamonds ranks #999999 out of 2239 companies for Price-to-Tangible-Book. This places Petra Diamonds in the lower half of its industry. The industry median Price-to-Tangible-Book is 2.24. Petra Diamonds' value of 0.61 is 72.8% below this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Price-to-Tangible-Book for a Metals & Mining company?
The median Price-to-Tangible-Book among Metals & Mining companies is 2.24, based on 2,239 companies in the industry. Companies in the top quartile (top 25%) have a Price-to-Tangible-Book significantly above this median, while those in the bottom quartile fall well below. However, Price-to-Tangible-Book should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Petra Diamonds's current Price-to-Tangible-Book of 0.61 is 72.8% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Price-to-Tangible-Book mean?
A high Price-to-Tangible-Book can signal that a stock is expensive relative to its fundamentals. Price-to-tangible-book ratio is the ratio of share price to a company's tangible book value per share. View historical data on Petra Diamonds and its competitors. For the Metals & Mining industry, the median Price-to-Tangible-Book is 2.24 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Petra Diamonds's current Price-to-Tangible-Book is 0.61. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Petra Diamonds stock overvalued right now?
Petra Diamonds (PDLMF) has a current Price-to-Tangible-Book of 0.61. The stock's GF Value™ is $1.04, compared to a current price of $0.27 — trading 74.2% below its estimated fair value. The current Price-to-Tangible-Book is 0.61 and 72.8% below the Metals & Mining industry median of 2.24. Petra Diamonds' overall GF Score™ is 43/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Price-to-Tangible-Book calculated?
Price-to-Tangible-Book is calculated from a company's financial statements. For Petra Diamonds (PDLMF), the current Price-to-Tangible-Book is 0.61 as of Sep. 17, 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 Petra Diamonds (PDLMF) Overvalued in 2026?
Based on GuruFocus' analysis, Petra Diamonds stock appears to be undervalued.
The current stock price of $0.27 is trading 74.2% below its estimated GF Value™ of $1.04.
Key valuation signals for PDLMF:
Price-to-Tangible-Book: 0.61
GF Value™: $1.04 vs. price of $0.27 (74.2% below fair value)
Industry Position: 72.8% below the Metals & Mining median (#999999 of 2239)
No single metric tells the full story. See the PDLMF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Petra Diamonds Ltd is an independent diamond mining company. It focuses on the upstream segment of the diamond pipeline, which includes mining, processing, sorting, and selling rough diamonds. It operates in Southern Africa, with mines such as Cullinan and Finsch producing high-quality white and rare blue diamonds. Its operating and geographical segments are: a) Mining: The extraction and sale of rough diamonds from mining operations in South Africa and Tanzania, b) Corporate: Administrative activities in the United Kingdom, c) Beneficiation: Beneficiation activities in South Africa. The majority of revenue is generated from the sale of rough diamonds.
43GF Score
Get the complete analysis for PDLMF
Price-to-Tangible-Book is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
PDLMF has been successfully added to your 
