Color
Uniqueness: The uniqueness
of naturally-colored cultured pearls produced in TUAMOTU derives
from their great diversity of colors and color nuances. Ultimately,
it is this that makes these pearls such objects of beauty.
Body color: Right from
the start, the grafter, by their choice of mantle or graft (epithelium),
which could be compared to a "color catalyzer", influences
the final color of the host oyster’s pearl, which will ‘inherit’
the characteristics of the graft.
Different color nuances can be contained within a single color,
and with the colors of the rainbow as a color base, a hundred
or so nuances of color can be seen (pastel, darker, lighter tones
etc…)
Common colors, cyclically-recurring colors: Some colors feature
regularly in all harvests, like dark green, light green, aubergine
and every imaginable shade of blue. Other shades come around every
few years (cyclically) or as a result of climatic conditions (to
give one example, the El Nino effect) These colors include gold,
pink and champagne shades, boasting color nuances to delight even
the most experienced and sophisticated tastes.
Lagoon health: A lagoon
which is well-stocked with plankton and phytoplankton is a vital
factor in the development of aragonite layers and therefore in
the development of the pearl itself.
Temperature: During warmer
periods, the oyster will feed well (favoring the growth of both
the pearl and the oyster, as well as fluctuations in the calcium
carbonate ‘fixing process’). During colder periods,
however, (June to September), the oyster feeds less, as if it
were entering a state of hibernation. At this time the secretion
of mother-of-pearl is at its slowest, but most regular and even
(therefore the calcium carbonate layer is of a much more even
finish). Pearls harvested during this period have the best luster,
with a very brilliant gloss. It is for this reason that the Japanese
Akoya pearl is harvested in winter, which helps to give it, despite
its thin nacre layer, a gloss and shine that is world-famous.