Gems and Gemology

Aims & Scope

G&G publishes original articles on gem materials and research in gemology and related fields.

Manuscript topics include, but are not limited to: Laboratory or field research; Comprehensive reviews of important topics in the field; Synthetics, imitations, and treatments; Trade issues; Recent discoveries or developments in gemology and related fields (e.g., new instruments or identification techniques, gem minerals for the collector, and lapidary techniques); Descriptions of notable gem materials and localities; Jewelry manufacturing arts, historical jewelry, and museum exhibits.

View Aims & Scope

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Metrics & Ranking

Impact Factor

Year	Value
2025	2.6

SJR (SCImago Journal Rank)

Year	Value
2024	0.715

Quartile

Year	Value
2024	Q2

h-index

Year	Value
2024	36

Journal Rank

Year	Value
2024	7900

Journal Citation Indicator

Year	Value
2024	53

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Abstracting & Indexing

Journal is indexed in leading academic databases, ensuring global visibility and accessibility of our peer-reviewed research.

• Scopus
• Google Scholar
• Web of Science

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Subjects & Keywords

Journal’s research areas, covering key disciplines and specialized sub-topics in Earth and Planetary Sciences, designed to support cutting-edge academic discovery.

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Most Cited Articles

The Most Cited Articles section features the journal's most impactful research, based on citation counts. These articles have been referenced frequently by other researchers, indicating their significant contribution to their respective fields.

• Identification of Synthetic Diamond Grown Using Chemical Vapor Deposition (CVD)

  Citation: 133

  Authors: Philip M., Simon C., Andy J., Samantha J., David J. F., Michael J.

• The "Type" Classification System of Diamonds and Its Importance in Gemology

  Citation: 106

  Authors: Christopher M., James E.

• An Update on Color in Gems. Part 1: Introduction and Colors Caused by Dispersed Metal Ions

  Citation: 85

  Authors: Emmanuel, George R.

• An Update on Color in Gems. Part 2: Colors Involving Multiple Atoms and Color Centers

  Citation: 81

  Authors: Emmanuel, George R.

• De Beers Natural versus Synthetic Diamond Verification Instruments

  Citation: 76

  Authors: Christopher M., Martin, Paul M.

• Beryllium Diffusion of Ruby and Sapphire

  Citation: 74

  Authors: John L., Kenneth, Shane F., Thomas, Troy R., Richard, Steven, James E., Wuyi, Owen, Robert E.

• An Update on Color in Gems. Part 3: Colors Caused By Band Gaps and Physical Phenomena

  Citation: 65

  Authors: Emmanuel, George R.

• Spectroscopic Evidence of GE POL HPHT-Treated Natural Type IIa Diamonds

  Citation: 58

  Authors: David, Raymond A.

• Applications of Laser Ablation—Inductively Coupled Plasma—Mass Spectrometry (LA-ICP-MS) to Gemology

  Citation: 47

  Authors: Ahmadjan, Hiroshi

• Gem-Quality Synthetic Diamonds Grown by a Chemical Vapor Deposition (CVD) Method

  Citation: 46

  Authors: Wuyi, Thomas, Robert C., James E., Matthew, James E.

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