observed peaks originate from the N3 center.
The category 1–fluorescing diamonds derive
their bodycolors from different origins. Pink diamonds
have a broad absorption band with a peak at
550 nm, which is thought to be due to plastic deformation
(Fritsch, 1998). The color of most yellow
diamonds is attributed to the N3 center, although
some are colored by isolated nitrogen atoms
(Fritsch, 1998). Fancy white diamonds are typically
colored by light scattered from minute particles,
some of which may be carbonates (Titkov et al.,
2006), or their color may be related to the nitrogen B
aggregate (Fritsch, 1998). Despite their different origins
of color, all showed similar fluorescence spec