Initially, it may seem extremely daunting to be sitting in front of several thousand carats of
small diamonds, knowing that the likelihood of finding a diamond with a meaningful …

Diamond is not a common rock-forming mineral (an exception being “diamondite”; see
Jacob and Mikhail 2022, this volume) nor a common crustal mineral (the exceptions being …

This chapter is devoted to the carbon and nitrogen stable isotope compositions of terrestrial
diamonds with a strong focus on monocrystalline diamonds formed in Earth's mantle. The …

One of the key scientific questions about diamonds is “how are they formed?” To answer this
question, we need to know the diamond-forming reactions and the physicochemical …

Since first being discovered in India over 2000 years ago, the most striking and universally
recognized shape of an uncut diamond is the octahedron. This shape was revered from …

Diamond crystallization ages are essential information for science and industry, leading to
an understanding of how, why, and where diamonds form in Earth and how best to find …

Subduction related to the ancient supercontinent cycle is poorly constrained by mantle
samples. Sublithospheric diamond crystallization records the release of melts from …

Sublithospheric diamonds and the inclusions they may carry crystallize in the
asthenosphere, transition zone, or uppermost lower mantle (from 300 to∼ 800 km), and are …

Boron is a quintessential crustal element but its conspicuous presence in diamond–a mantle
mineral–raises questions about potential subduction pathways for boron and other volatiles …

Abstract Ferropericlase [(Mg, Fe) O] is one of the major constituents of Earth's lower mantle
and the most abundant mineral inclusion in sub-lithospheric diamonds. Although a lower …