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Description
Black Measurement Range
If the cursor flashes in a black measurement range,
it is very likely that the object has a gold content in
the indicated range. For example, the result "8K"
indicates that the object has a surface gold content
between 30.0 and 35.4%. As a rule, the
CaratScreenPen indicates the range of the carat
number
2.1%
in
the
measurement
result.
Exception: 8 K = 333‰ or 33.3% gold content.
If the cursor flashes in a light gray measurement
range (so-called transition range), the gold content
of the object cannot be clearly assigned. In this
Transition Measurement Range
case, for example, the result in the figure on the
left indicates that an object with a 14 carat
hallmark could have a high silver or palladium
content and therefore reach into the 18 carat
range,
although
the
gold
content
actually
corresponds to 14 carat. In such a case, one should
rely on the hallmark or calculate with the lower
carat number as a precaution. In rare cases, the
particular composition of the object causes an alloy
with a high carat number to be on the border of the
next lower carat range.
If the cursor flashes in the left, red range with the
output "NO GOLD / 0 – max. 30% Au", the gold
content of the object is below the values typically
Counterfeits and low gold contents
used for gold jewellery. Low carat alloys are
summarized in the range of 0-30% gold content. In
the majority of these cases it is a material of low
value, but also 6 or 7 K alloys are possible.
If an object with a 333 hallmark is on the left edge
of the 8K range, you should be careful and polish a
spot on the object with the glass fibre pen and
measure again. Please also not the important
information regarding jewellery without a (legible)
hallmark.
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