Results from spectroscopic analyses of GE POL high-pressure high-temperature (HPHT) annealed nominally type IIa diamonds are presented, and these spectral characteristics are compared with those of untreated diamonds of similar appearance and type.
No takes yet. Share an insight, caveat, or question.
Fisher et al. (2000) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: