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The proven YEHUDA detection process involves illuminating the diamonds being tested using a
proprietary lighting system and software to determine their identity. This special light causes ALL the
diamonds being tested to emit light (uoresce), while SOME diamonds will continue to emit light or
glow in the dark (phosphorescence) after our light is shut off.
UNDERSTANDING THE TEST RESULTS:
When the testing process is completed, 5 pictures will be shown:
1. RESULT - Default
2. LUV - Long UV uorescence
3. GLOWING - Phosphorescence or glowing in the dark when the light is shut off
4. COLORED - Fluorescence or glowing when illuminated
5. ORIGINAL - A picture of the goods under white light
Result Picture:
It is the default picture result that you get at the end of the test.
1. Any diamond that shines in ONLY blue color is a NATURAL DIAMOND.
2. Any diamond that shines in NON blue color or is painted in red is a LAB GROWN DIAMOND.
To fully understand the result picture please rst read about all other results and then read the
explanation in the bottom.
LUV (LONG UV) PICTURE:
The long UV test result is superior to all other results.
If in the RESULT picture a diamond is determined as a lab grown diamond but in the LUV test it is
determined as a natural diamond- THEN IT IS A NATURAL DIAMOND.
IMPORTANT DETECTION GUIDELINESIMPORTANT DETECTION GUIDELINES
(Detailed instructional videos are also available.)
IMPORTANT :
To correctly identify the stones being tested, you cannot stop and make
your determination by only looking at the RESULT picture. You MUST
also look at the LUV picture, and then the GLOWING picture. In other
words, if you did not look at all 3 of these pictures you may make a wrong
determination of a stone’s identity.
PLEASE PAY ATTENTION!
During the test procedure our special light will cause all diamonds to show
uorescence. We also test the uorescence of the diamonds under a regular
LONG UV light which, as you know, causes some diamonds to show uorescence.
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