M-Screen Ultra

The M-Screen Ultra is a superfast, high-tech, automated screening device developed primarily for large amounts of melee diamonds. It automatically feeds, screens, and sorts out brilliant round diamonds at a super speed of 3 diamonds per second (up to 15.000 diamonds per hour), with five times fewer referrals than the M-Screen+. The short-wave UV light technology behind the screening is highly secure. Combined with other techniques, it can accurately separate natural diamonds from simulants and potential laboratory-grown diamonds (HPHT and CVD).


Measured stones/hour

0.005 – 0.20 ct

For round brilliant diamonds


Fewer referrals than M-screen+


  • Compact tabletop model
  • Screens for natural, simulants, and potential laboratory-grown (HPHT & CVD)
  • Short Wave, UV light technology, combined with other techniques
  • Superfast (min. three diamonds/second)
  • Round brilliant diamonds from 0.005 to 0.20 ct, D-J color
  • Reliable and consistent results