What is the small black thing inside the package that is shaped like the capital letter E

Mine came with a thing to hold loose diamonds...is this what you’re talking about?

Does this unit test uncut stones?

How To Test Diamond Turn on the switch. Make sure only 1 light is lighting up on the scale. Wait few seconds for the probe to heat up until Lamp on ready OK. Turn on the lights numbers corresponding to the indoor temperature and diamond weight. If don't know. Set 4 lights is lighting up on the scale. Start test diamond, no need to adjust the switch switch. Use the diamond discriminator probe to make 90-degree contact with the measured object, and observe the indicator light change. It needs a little bit of force to stop it on the diamond surface and make full contact. If unsuccessful, please repeat the second step. Hqdz Diamond Tester Pen Test result analysis If lights >= 9 and have sounds, it is true diamond. If lights < 9 and no sounds, it is not diamond. If lights is 7 or 8, it is true crystal. If lights is 6 or 7, it is true jade. If lights is 4 or 5, it is glass. Don't test metal，Don't wear gloves. In a low temperature environment, the battery discharge is weakened. Please raise the battery temperature to above 10 degrees Celsius. The test takes a few minutes, please turn off the power after the test is complete.

Why does it go to red and beep on a chain I believe it’s gold . It’s the same beep noise as it sounds with a diamond. Not the weird sound on metal

How To Test Diamond Turn on the switch. Make sure only 1 light is lighting up on the scale. Wait few seconds for the probe to heat up until Lamp on ready OK. Turn on the lights numbers corresponding to the indoor temperature and diamond weight. If don't know. Set 4 lights is lighting up on the scale. Start test diamond, no need to adjust the switch switch. Use the diamond discriminator probe to make 90-degree contact with the measured object, and observe the indicator light change. It needs a little bit of force to stop it on the diamond surface and make full contact. If unsuccessful, please repeat the second step. Hqdz Diamond Tester Pen Test result analysis If lights >= 9 and have sounds, it is true diamond. If lights < 9 and no sounds, it is not diamond. If lights is 7 or 8, it is true crystal. If lights is 6 or 7, it is true jade. If lights is 4 or 5, it is glass. Don't test metal，Don't wear gloves. In a low temperature environment, the battery discharge is weakened. Please raise the battery temperature to above 10 degrees Celsius. The test takes a few minutes, please turn off the power after the test is complete.

ASIN	B06Y2MT175
Brand	Hqdz
Brand Name	Hqdz
Color	Black
Colour	Black
Customer Reviews	4.0 out of 5 stars 6,951 Reviews
Included Components	Batteries included
Item Dimensions	10 x 4 x 3 centimeters
Item Weight	150 g
Item dimensions L x W x H	10 x 4 x 3 centimeters
Item weight	150 g
Lower Temperature Rating	10 Degrees Celsius
Manufacturer	Hqdz
Maximum Operating Voltage	9 Volts
Measurement Type	Ohmmeter, Voltmeter
Minimum Operating Voltage	9 Volts
Model	Hqdz
Power Source	Battery Powered
Power source	Battery Powered
Specification Met	CE
Style	Modern
Style Name	Modern
UPC	612957119690
Upper Temperature Rating	35 Degrees Celsius

Professional Jeweller High Accuracy Diamond Tester For Novice and Expert - Diamond Selector II 9V Battery Included

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