Synthetic Diamond Screener II

Synthetic Diamond Screener II

Synthetic Diamond Screener II is a portable desktop diamond verification instrument for loose and mounted stones, designed to screen out synthetic diamonds. Synthetic Diamond Screener II is manually operated but gives an automatic test result.

The performance metrics shown below are based on testing done in 2019 using the ASSURE 1.0 test standard and sample sets. The Synthetic Diamond Screener II has not been tested under ASSURE 2.0.

Stone Testing Capability

Weight: 0.02 ct-10 ct
Size: From 1.50 mm in width to 5.00 mm in height
Colour: D-J
Shape: All, if it has a flat surface
Diamond Simulants: No
Mounted Stones: Yes (open back setting, not yet ASSURE Tested)

Instrument Performance

The below results demonstrate the performance of the Synthetic Diamond Screener II with the ASSURE 1.0 Core Sample:

Diamond False Positive Rate (optimal rate 0%): 0%
Diamond Referral Rate (optimal rate 0%): 15.5%
Diamond Accuracy Rate (optimal rate 100%): 84.5%
Speed (stones tested per hour): 240 

The Core Sample consists of 1,000 loose diamonds, 200 loose synthetic diamonds and 200 loose diamond simulants. The stones are 0.02ct to 0.20ct in D-J colour.

Instrument Capabilities

Automated Feed: No
Automated Results: Yes
Automated Dispense: No
Detect or Refer (synthetic diamonds): Refer
Detect or Refer (diamond simulants): N/A
Multiple Stones at Once: No
Training Required: No

Diamond Screener II automatically displays one of the following results:

  1. Blue – Natural diamond
  2. Red – Type IIa diamond

The ‘Red – Type IIa diamond’ result could contain potential synthetic diamonds and diamonds. These referrals should be tested further for full verification. The instrument does not require calibration by user.

Instrument Specifications

Size: 13 cm (L) x 10 cm (W) x 6.5 cm (H)
Weight: 0.21 kg
Price: 599 USD (February 2019)

Contact information
+65 6771 9760

ASSURE Tested March 2019
ASSURE ID: 547682