QUALITY
SCALE
MEXICAN OPALS
Untreated |
 |
|
HOW
TO CHOOSE
It is impossible to know just
by looking at it whether a stone
is likely to develop cracks,
so choosing the store you buy
from is of primary importance.
Trustworthy jewelers generally
have an agreement with their
suppliers regarding quality
standards and how to cope with
contingencies. The key points
in choosing are the strength
of the multi-colored flashes
and how well the stone is shaped.
Deciding between bluish water
opals and orange-colored fire
opals is a matter of personal
preference.
The value of a three-carat-size
Mexican opal of jewelry quality
is approximately US $2,000 for
the stone alone. (2001) |
| A
GEM OF VALUE |
|
Weight:2.14ct
Size(mm):L11.5
x W7.8 x
D4.39
Untreated
Gem Quality
US $2,500
|
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