GEM
ORO ULTRATESTER 3+
2
3
READ BEFORE USING
A high percentage of the
new generation, super-low
electrically conductive Forever
One or “F1” moissanite that
was introduced in late 2015
will incorrectly be identified
as diamond when tested on a
traditional combination electrical
and thermal conductivity tester.
However, your UltraTester 3+
uses the new patented UV-
F1 TECHNOLOGY™, and it is
exclusively calibrated to identify
this faint electrical conductivity
property. Please note that the
new Forever One moissanite
can no longer be easily visually
identified, as it is now D-E-F
“colorless”, with few inclusions.
Be aware that body oil is also
electrically conductive. Due to
the tester’s enhanced sensitivity
for electrical conductivity, dirty
diamonds may potentially test
as moissanite. To avoid false/
positive readings on dirty
diamonds, ALWAYS CLEAN
THE STONE by simply wiping
the body oil off on the provided
STONE TESTING CLOTH prior to
performing a test. Periodically,
also clean any accumulated body
oil off of the probe tip by gently
rubbing it on a piece of uncoated
paper - SEE MANUAL.
NEED HELP? Call GemOro
at
800.527.0719
for
immediate assistance.
The GemOro
UltraTester 3+
is
the ultimate tester for diamond
fraud protection! The UltraTester
3+ features exclusive
UV-F1
TECHNOLOGY™
and is capable of
identifying the widest range of the
electrically conductive moissanite
material available, including the new
super-low electrically conductive
Forever One moissanite.
OPERATING PROCEDURE
& OWNERS MANUAL
Congratulations on your purchase
of the UltraTester 3+ from GemOro
Superior Instruments, the most
trusted name in gemological
instrumentation for the jewelry
industry. You’ve made a great
choice. Built upon the foundation
of the second generation and most
popular tester to date, the UltraTester
3+ offers even more. Separate true
diamonds from moissanite, white
sapphire, CZ, and other known
diamond simulants with confidence.
IMPORTANT: PLEASE BE CERTAIN
TO READ THE FOLLOWING
COMPLETELY BEFORE USING.
THERMAL CONDUCTIVITY &
ELECTRICAL CONDUCTIVITY
TESTING METHODS
The recognized method for
separating diamond from all
known diamond simulants (except
moissanite and synthetic diamond)
is the thermal conductivity test. The
thermal conductivity test works
consistently well since the thermal
(or heat) conductivity property of
a diamond is significantly greater
