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Presidium Synthetic Diamond Screener (SDS), Item No. 56.738

Identifies synthetic diamonds within 6 seconds. 

The SDS can be used with almost any cut of diamond – loose or mounted stones. Tests best on 0.1 to 10 Carats.

UV light absorption is key to SDS 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 IIa colorless diamond, likely to be synthetic.


  • Advanced UV light transmittance measurement technology
  • Clear results within 6 seconds
  • Exterior base foam padding ensures non-slip sturdiness
  • Streamlined ergonomic design that enhances portability and stability
  • Low-battery indicator
  • Energy saver auto power-off for SDS and LED light source
  • Interior LED light source and testing area
  • USB port for alternative power source connection