After running a test with your Reveal Diamond Detector, it's important to know what the results mean. This guide will help you easily identify whether your stones are natural diamonds or refer stones which could be either lab-grown diamonds or diamond simulants.
What the Colours Mean
Colour | What It Means |
Blue | Natural Diamond (confirmed) |
Non-Blue (red, green, white, etc.) | Refer – Could be lab-grown or simulant. Needs further review! |
Quick Breakdown:
Natural Diamonds: Glow blue under UV light.
Refer Samples: These samples could be either Lab-Grown Diamonds or Simulants
Lab-Grown Diamonds (HPHT/CVD): Show non-blue colours and they may afterglow when UV is turned off.
Simulants (e.g. moissanite, cubic zirconia):
Moissanite: Very dim or invisible under UV, no glow after UV is turned off.
Cubic Zirconia: Green halo with dark centre under UV, no afterglow.
When using the Reveal diamond detector, the colours you see in the “flou+phos” marks help identify what kind of stone you have.
If you see blue, you’re likely looking at a natural diamond with blue fluorescence and no phosphorescence.
If the mark is red, check the fluorescence and phosphorescence: blue fluorescence and faint orange phosphorescence usually mean a natural diamond.
Intense turquoise fluorescence and turquoise phosphorescence suggest a refer, potentially an HPHT lab-grown diamond; non-blue fluorescence with any phosphorescence points to a refer, most probably a CVD lab-grown diamond.
If the mark and the fluorescence is non-blue and there’s no phosphorescence, it’s a refer, probably a CVD lab-grown diamond.A green halo around a dark centre—with no phosphorescence—means the stone is a refer likely cubic zirconia. If there’s no colour in the marks, and the stone seems to disappear, it’s referred probably moissanite.
Flou+Phos Mark | Fluorescence | Phosphorescence | Likely Stone Type |
Blue | Blue | None | Natural Diamond |
Red | Blue | Faint orange | Natural Diamond |
Red | Intense turquoise | Turquoise | Refer
|
Red | Non-blue | Any colour | Refer
|
Non-blue | Non-blue | None | Refer
|
Green halo | Green halo | None | Refer
|
No colour | None | None | Refer
|
Image Modes on the Device
Tap the icon in the bottom right to switch between viewing modes:
Daylight: Regular lighting view—see the stone’s natural look.
Fluorescence: Shows how stones react under UV light.
Phosphorescence: Displays if stones glow after UV is turned off.
Use all three modes for the most accurate identification.
 Daylight View |  |  |
Sample Interpretation Guide
Fluorescence View
Far Right Column (Blue): Natural diamonds.
Second from Right (Intense turquoise): Refer-potentially Lab-grown (HPHT).
Center Column (Pink/Orange/Red/Yellow): Refer-potentially Lab-grown (CVD).
Second from Left (Very Dim/Invisible): Refer-potentially Moissanite.
Far Left (Green halo with Dark Centers): Refer-potentially Cubic zirconia.
Phosphorescence View
Natural Diamonds: Usually dark or very faint glow.
Lab-Grown Diamonds: May glow after UV is off.
Moissanite & Cubic Zirconia: No afterglow – they appear dark.
Summary
Stone Type | Fluorescence | Phosphorescence |
Natural Diamond | Blue | Dark or faint |
Lab-Grown Diamond | Non-blue | Generally, glows after UV |
Moissanite | Very dim or invisible | None (dark) |
Cubic Zirconia | Green with dark center | None (dark) |
Pro Tip
Always switch between fluorescence and phosphorescence views to confirm your results and improve accuracy.