Presidium Synthetic Diamond Screener

Presidium Synthetic Diamond Screener This tool identifies lab crown diamonds and cvd/hpht diamonds through measurement of UV absorption. This machine screens out type lla colorless diamond, which is likely to be synthetic and created through chemical vapor deposition (cvd) or high pressure temperature (HPHT) syntheses, from the natural Type la colorless diamonds. These different diamonds absorb UV light differently. Type lla diamonds allow a deeper uv light to pass (meaning absorption ability is low).

The specifics:

• Advanced technology that measures a diamond’s UV light
• transmittance ability
• 2 colour coded (blue/red) indicator light bars to give a low or high reading of UV light absorption with blue light indicating Natural Diamond and red light indicating Type IIa Diamond
• Instantaneous clear results within 6 seconds
• Exterior base foam padding to ensure non-slip sturdiness and prevent scratches to surfaces
• Stream-lined ergonomic design that enhances portability and stability
• Low battery indicator
• Energy-saving auto power-off of device after 10 minutes without operation
• Interior LED light source and testing area.
• Energy-saving auto power-off of interior LED light source when lid of device is open or when start
• Test button is not activated
• USB port for alternative power source and connectivity

*Only for colourless diamonds of: colour grade D to J colour, Carat Size: 0.1 carat to >10 carats, Cut: For all cuts as long as gemstone has a flat surface, Mounted Jewelry: For jewelry with “open back”.