Guide for Authors

The manuscript (including tables and figure captions) should be provided as a single Microsoft Word or PDF file. The authors have to submit their manuscript and TRANSFER OF COPYRIGHT (Copyright form) to the Gemological Magazine via journal's website.

The papers are published free of charge to the author(s).

The manuscript should be arranged in the following order:

  1. Title page including authors' names and affiliations
  2. Abstract
  3. Text (including appendices)
  4. Acknowledgments
  5. Reference list
  6. Tables
  7. Figure captions
  8. Figures
  • If MS Word is used to typeset the manuscript, use 12 pt Times New Roman.
  • Use British English as the language.
  • Indent or space between all paragraphs. Use one-and-half spacing for the manuscript.
  • Use the metric system throughout; use of appropriate SI units is encouraged.  If using other, more commonly used units, give the SI equivalent in parentheses.
  • Do not use italic font for units of measure or chemical elements.
  • Do not create math equations or tables as pictures.
  • Format the manuscript in a single column.

Title page:

The title of the paper must be short and contain words useful for indexing. Include in the title page the names (with initials) of authors and the name and affiliation. The manuscript title should be as an abbreviated running title of not more than 50 characters (including spaces).

One author has been designated as the corresponding author with contact details:

• E-mail address

• Full postal address

• Telephone and fax numbers

Please summarize the objectives of the investigation and the important conclusions. Set the abstract as a single paragraph of not more than 300 words. Do not include references in the abstract.


Set maximum six keywords for indexing.

Mathematical material:

Equations must be clearly written, each on its own line, well away from the text. All equations must be numbered consecutively in arabic numerals with the equation number in parentheses near the right hand margin; number displayed equations consecutively within the article, not within the section. Use italic for variables, bold for vectors and matrices, script for transforms, and sans serif for tensors. Use superscripts and subscripts in superior or inferior position; do not use raised and lowered fonts.  Extend fraction bars under the entire length of the numerator. Use solidus fractions (l/r) in text.  Use the following to avoid ambiguity: parentheses, brackets, and braces, in that order { [ ( ) ] }. Add one extra line space above and below all displayed equations.


References at the end of the paper should be listed alphabetically by authors' names, followed by initials, year of publication, title of the paper, full name of the journal volume number, and starting and ending page numbers.  References to books should include: name(s) of author(s), initials, year of publication, title of the book, edition if not the first, initials and name(s) of editor(s) if any, preceded by ed(s), place of publication, publisher. References to thesis must include the year, the title of the thesis, the degree for which submitted, and the University.

 Citation in text

Please ensure that every reference cited in the text is also present in the reference list (and vice versa). References should be cited in the text by authors and year. If there are more than two authors, reference should be to the first author followed by "et al" in the text; Italicize "et al" [For example: (Jackson et al., 2008) or Jackson et al.  (2008)]

Web references

As a minimum, the full URL should be given and the date when the reference was last accessed. Any further information, if known (DOI, author names, dates, reference to a source publication, etc.), should also be given. Web references can be listed separately (e.g., after the reference list) under a different heading if desired, or can be included in the reference list.

References in a special issue

Please ensure that the words 'this issue' are added to any references in the list (and any citations in the text) to other articles in the same Special Issue.

Reference to a journal publication:

Jackson, J., Hains, J., Holt, W. 1995. The accommodation of Arabia-Eurasia plate. Journal of Geophysical Research: 100, 205–215.

Reference to a book:

Strunk Jr., White, E.B. 2000. The Elements of Style, fourth ed. Longman, New York.

 Reference to a chapter in an edited book:

Mettam, G.R., Adams, L.B. 2009. How to prepare an electronic version of your article, in: Jones, B.S., Smith , R.Z. (Eds.), Introduction to the Electronic Age. E-Publishing Inc., New York, pp. 281–304.


All tables must be numbered consecutively in arabic numerals in the order of appearance in the text.  Include all tables in the PDF file containing the manuscript text. The tables should be self-contained and have a descriptive title.  All columns must have headings arranged to clarify their relation to the data.  Footnotes should be indicated by superscript, lowercase letters. Each table must be cited in text. Avoid tables created with the tab key, pictures, and embedded objects.

Figure formats:

All figures including photographs should be numbered consecutively in arabic numerals in the order of appearance in the text. The journal publishes colour figures free of cost. Authors are encouraged to prepare all figures to final size. Decide if the figure is to be a one-column figure (maximum width 8.4 cm, including all labels and legends) or a two-column figure (maximum width 17 cm, including all labels and legends). Preparing figures initially to the expected final size also avoids the need for the publisher to enlarge or reduce the figure to fit the journal requirements, thereby maintaining the original quality. Combine multipart figures or plates, adding letter labels as needed for captions, or provide separate captions for each part. The number of figure files should equal the number of figure captions.
For most graphics with lines and text only, use vector graphics EPS (Encapsulated PostScript). For images or photographs, use TIFF or high-resolution JPEG. JPEG is the best format for photos with a large file size.

For false-colour imagery, shading, or texture, use TIFF. TIFF provides the highest resolution to ensure patterns and shading are maintained.

Use Helvetica as the font for legends and labels. Ensure that no label or legend is smaller than 8 pt. All lines must be at least 0.5 pt (no hairline rules).

Duties of Editors:

Publication decision
Fair play
Disclosure and Conflicts of interest
Involvement and cooperation in investigations

Duties of Reviewers:

Contribution to Editorial Decision
Standards of Objectivity
Acknowledgement of Source
Disclosure and Conflicts of Interest

Duties of Authors:

Reporting standards
Data Access and Retention
Originality and Plagiarism
Multiple, Redundant or Concurrent Publication
Acknowledgement of Sources
Authorship of the Paper
Hazards and Human or Animal Subjects
Disclosure and Conflicts of Interest
Fundamental errors in published works

Conflict of interest:

All authors are requested to disclose any actual or potential conflict of interest including any financial, personal or other relationships with other people or organizations within three years of beginning the submitted work that could inappropriately influence, or be perceived to influence, their work.

Peer review process:

The peer review involves an exchange between editor and a team of reviewers (referees). After the referees receive a Manuscript from the editor-in-chief, they read it closely and provide individual critiques, usually within four weeks. In the review form they comment on the validity of the science, judge the significance by evaluating the importance of the findings, determine the originality of the work,  and identify missing or inaccurate references. Finally, they recommend that the paper be published or rejected.

Manuscript Withdrawal Policy

Manuscripts may be withdrawn at any stage of review and publication process by submitting a request to the editorial office. Manuscript withdrawal will be permitted after submission only for the most compelling and unavoidable reasons. A withdrawal penalty may or may not be levied on the authors:

* Withdrawal after manuscript submission to before peer reviewer's comments are sent to the authors - No penalty.

* Withdrawal after the peer reviewer's comments have been sent to the authors to before the authors are informed of the final decision about manuscript acceptance - $50 withdrawal penalty.

* Withdrawal after the authors are informed of the final decision about manuscript acceptance - $100 withdrawal penalty.