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
Are batteries included?	Yes
Batteries	1 A batteries required. (included)
Best Sellers Rank	#4,378 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #370 in Test, Measure & Inspect
Brand	Hqdz
Colour	black
Country of Origin	India
Customer Reviews	3.7 3.7 out of 5 stars (6,920)
Date First Available	9 July 2017
Included Components	1 Electric Circuit Testing Device
Item Dimensions LxWxH	10 x 4 x 3 Centimeters
Item Height	3 Centimeters
Item Weight	150 g
Item Width	4 Centimeters
Item dimensions L x W x H	10 x 4 x 3 Centimeters
Item model number	Hqdz
Lithium battery energy content	1 Watt Hours
Manufacturer	Gadget Hero's
Min. Operating Voltage	9 Volts
Model number	Hqdz
Net Quantity	1.00 Count
Number of Memory Sticks	1
Power Source	Battery Powered
Product Dimensions	10 x 4 x 3 cm; 149.69 g
Specification Met	CE
UPC	612957119690
Voltage	9 Volts

High Accuracy Diamond Tester Professional Jeweler for Novice and Expert - Diamond Selector II 9V Battery Included

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