Presidium Synthetic Diamond Screener

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Identifies synthetic diamonds within 6 seconds!

The Presidium Synthetic Diamond Screener can be used with almost any cut of diamond – loose or mounted (open back) stones. Tests best on 0.1 to 10 Carats.

UV light absorption is used to provide accurate testing. Two color-coded light bars provide a low or high reading of UV light absorption. The blue light indicates a Natural Diamond and the red light indicates a Type II colorless diamond, likely to be synthetic. Measures 5.12"L x 3.94"W x 2.56"H One year manufacturer's warrantee. Made in Singapore. 

The user is cautioned against using the synthetic Diamond Screener on the following as it may affect the accuracy of the readings:
Stones that are more than 6mm in height; diamonds of colors other than colorless D to J; testing on other forms of diamond stimulants such as moissanite, cubic zirconia, etc.


  • Advanced UV light transmittance measurement technology
  • 2 color coded indicator light (blue/red) bars to give a low or high reading of UV light absorption with blue light indicating Natural Diamond and red light indicating Synthetic (Lab-Grown) Diamonds
  • Clear results within 6 seconds
  • Exterior base foam padding ensures non-slip sturdiness
  • Streamlined ergonomic design that enhances portability and stability
  • Low-battery indicator, uses 4 AAA alkaline batteries (not included)
  • Energy saver auto power-off for entire unit and LED light source
  • Interior LED light source and testing area
  • USB port for alternative power source connection. 
  • USB cable and appropriate Presidium Universal USB Power Adaptor included. 
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