THE DIAMOND DATASET CODEBOOK

The document describes the DIADATA dataset, which lists diamond occurrences worldwide, including geographic coordinates, geological forms, and dates of discovery and production. It details the data collection process from academic, governmental, and industry sources, and explains the coding structure for variables such as geological form (primary, secondary, or marine) and production status. Additionally, it describes a 'compact version' of the dataset where sites within 50 km are aggregated into multipoints to reduce missing temporal data. The document includes detailed country profiles for 53 countries, outlining their diamond discovery and production histories.

• The DIADATA dataset contains 1,175 entries for diamond occurrences across 53 countries, with 33 of those countries having some form of production.
• To address missing discovery and production dates in the original dataset, a compact version was created by aggregating sites within 50 km into multipoints, which significantly improved the completeness of temporal data.
• Data collection relied on a variety of sources, including the GeoRef database, the USGS Minerals Yearbook, the Mineral Resource Data System (MRDS), and the commercial database Infomine.
• The authors identify several biases in the data, including the falsification of records and the unwillingness of some countries to disclose information, particularly in conflict-affected regions like Angola, Sierra Leone, Liberia, and the Democratic Republic of Congo.
• The dataset distinguishes between 'lootable' (secondary) and 'non-lootable' (primary) diamonds, a distinction used to generate specific subsets for conflict research.

APA

Gilmore, E., Lujala, P., Gleditsch, N. P., & Rød, J. K. (n.d.). THE DIAMOND DATASET CODEBOOK. Peace Research Institute Oslo. https://cdn.cloud.prio.org/files/3600c16d-1c66-42c0-bcf7-8b3733acca5b/DIADATA Codebook.pdf?inline=true

Chicago

Gilmore, Elisabeth, Päivi Lujala, Nils Petter Gleditsch, and Jan Ketil Rød. THE DIAMOND DATASET CODEBOOK. Peace Research Institute Oslo, n.d. https://cdn.cloud.prio.org/files/3600c16d-1c66-42c0-bcf7-8b3733acca5b/DIADATA Codebook.pdf?inline=true.

Wikipedia

{{cite report |last1=Gilmore |first1=Elisabeth |last2=Lujala |first2=Päivi |last3=Gleditsch |first3=Nils Petter |last4=Rød |first4=Jan Ketil |title=THE DIAMOND DATASET CODEBOOK |publisher=Peace Research Institute Oslo |url=https://cdn.cloud.prio.org/files/3600c16d-1c66-42c0-bcf7-8b3733acca5b/DIADATA Codebook.pdf?inline=true |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{gilmorenddiamond, author = {Gilmore, Elisabeth and Lujala, Päivi and Gleditsch, Nils Petter and Rød, Jan Ketil}, title = {{THE DIAMOND DATASET CODEBOOK}}, institution = {Peace Research Institute Oslo}, url = {https://cdn.cloud.prio.org/files/3600c16d-1c66-42c0-bcf7-8b3733acca5b/DIADATA Codebook.pdf?inline=true}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }