i find american buyers usually demand fine proportions in colored
stones—stones with windows are difficult to sell, no matter how
good the color and clarity. sometimes it borders on obsession.
i can understand the importance of excellent proportions when it
comes to diamonds because reflection and refraction of light are the
only things a non-fancy color diamond can offer.
but colored stones can be very attractive even with no sparkle at
all. for example, cabochons have no facets yet they often display
canadian buyers are either: (a) less knowledgeable or (b) less
obsessive about how well a faceted stone is made.
there are some buyers, regardless of locale, for whom the weight of
the stone is of primary importance. these clients usually have an
esoteric use for the gem and are concerned first with weight, second
with clarity and third with color. for these buyers, proportions
aren’t even a consideration.
i think there’s a buyer for any and every possible combination of
color, clarity, make and size----the trick is to match up your
inventory with the right buyers, otherwise you’ll always be told you
have the “wrong” stone but it’s really just the wrong match of stone
so i think your question as to which factor in a gem receives the
most attention may first require an answer to the question of: “who
is looking at it?”