INTERPRETING THE INDICATION
The sounding of a continuous “beep” indicates that the probe tip
is in contact with either users hand or the metal setting.
The remedy is to reposition the probe tip as described under “Diamond
testing” section [5,6].
When testing Cubic Zirconium’s, “paste”, strass and other diamond
simulants no illumination of the green diamond lamp will be observed.
Testing of a genuine diamond will cause the green diamond lamp to
flash and a discontinuous beeping (beep-beep-beep) will sound.
PREPARATION PRIOR TO TESTING A STONE
The presence of dust, dirt, film and moisture on a stone may produce an inaccurate indication. Therefore, it is
prudent to routinely clean the surface of each stone to be tested by using a damp soft clean fabric followed by
drying using a dry soft clean fabric.
Remove the protective cover from the probe.
The tip of the probe should be cleaned frequently by wiping the tip across the surface of a piece of bonded
paper or a business card. Copier paper and fax paper are to be avoided.
The tip of the probe may be damaged by an accidental dropping of the unit. Always place the protective cover
over the probe immediately after use. Probe tip damage is exempted from the warranty.
During testing the users hands should be clean and dry. Do not wear gloves. One of the User’s “bare” fingers
must be touching the rear metal plate.
The stone to be tested should be allowed to reach room temperature.
For maximum accuracy, minimize handling of the stone prior to testing. If the item to be tested consists of a
setting containing many stones requiring more than ten seconds to test user must avoid heating the setting
with his hand; allow the item to be untouched for about fifteen seconds.
Best results are obtained by performing tests in still air. Avoid fans, drafts or air movement from air
conditioning or heating sources. Avoid breathing directly on the probe tip while testing.
“DIAMOND TESTING”
1. Choose either:
(A) the LARGE (normal) stone position when testing stones .08 Carat or larger (move the LARGE/SMALL
STONE switch to the right).
(B) the SMALL stone position when testing stones .08 Carat or smaller (move the LARGE/SMALL STONE
switch to the left).
2. The ambient temperature should be between 65F and 95F for testing.
3. Hold the diamond tester in your hand so that your fingers are in contact with the conductive panel (6).
4. With the other hand hold the stone to be tested by its setting.
5. Guide the probe tip to the center of a facet on the stone.
6. Touch the probe tip to the stone so that the probe tip is firmly and squarely against the facet of the stone.
Excessive force which might bend or break the tip must be avoided.
7. If a diamond is being indicated the green lamp will flash and a beeping sound (“beep, beep, beep”) will be
heard.
8. As always some stones require further testing to determine what they are. In the case of some Moissanite
stones testing as Diamond you need to do further testing such as checking for Double Refraction, and
shining UV light source on the stone while testing.
HELPFUL HINTS
If the red Low Battery lamp remains on and the Ready Lamp doesn’t light within twenty seconds the battery must be
replaced.
Stones being worn, which may be well above room temperature can be tested immediately using the SMALL STONE
setting. Otherwise allow the stone to return to room temperature before testing.
When testing a small stone use the SMALL STONE setting and make good contact against the stone on the first test
attempt, otherwise allow the stone to return to room temperature before retesting.
