Longines DolceVita - Manual (Page 16)

This certificate of authenticity guarantees the quality of
each precious stone selected by Longines’ specialists.
The cut: Longines diamonds are cut in the traditional
brilliant style.
The purity: the degree of purity of a Longines diamond
is VVS (very very small inclusions). This means that it
may include minute imperfections which are hardly
visible under tenfold magnification (VVS).
Longines bows to the paragon of beauty: the diamond
The colour: the colour of the diamonds used by
Longines is Top Wesselton.
The weight: the weight of a diamond is measured in
carats, one carat being equal to one fifth of a gram.
CERTIFICATE OF AUTHENTICITY 56