GLIS-Mini

GLIS-Mini

GLIS-MINI is a desktop diamond verification instrument for loose and mounted diamonds, designed to separate natural diamonds from synthetic diamonds and diamond simulants. GLIS-MINI is manually operated and requires the user to interpret the test results.

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

Stone Testing Capability

Weight: All
Size: All
Colour: D-J
Shape: All
Diamond Simulants: Yes
Mounted Stones: Yes (not yet ASSURE Tested)

Instrument Performance

The below results demonstrate the performance of the GLIS-Mini when tested by an Expert Operator.

Core Sample

Diamond False Positive Rate (optimal rate 0%): 11.1%
Diamond Referral Rate (optimal rate 0%): 0.8%
Diamond Accuracy Rate (optimal rate 100%): 93.2%
Speed (stones tested per hour): 951

The ASSURE 1.0 Core Sample consists of 1,000 loose diamonds, 200 loose synthetic diamonds and 200 loose diamond simulants if applicable. The stones are 0.02ct to 0.20ct in D-J colour.

Small Sample

Diamond False Positive Rate (optimal rate 0%): 7.3%
Diamond Referral Rate (optimal rate 0%): 16.4%
Diamond Accuracy Rate (optimal rate 100%): 80.1%
Speed (stones tested per hour): 951

The ASSURE 1.0 Smalls Sample consists of 1,000 loose diamonds, 200 loose synthetic diamonds and 200 loose diamond simulants if applicable. The stones are 0.005 ct to 0.02 ct in D-J colour.

Instrument Capabilities

Automated Feed: No
Automated Results: No
Automated Dispense: No
Detect or Refer (Synthetic Diamonds): Detect
Detect or Refer (Diamond Simulants): Refer
Multiple Stones at Once: Yes
Training Required: Yes

GLIS-MINI captures multiple images and based on visual analysis of the images, and support from a decision tool, the operator concludes the nature of the stones. The following results can be concluded by the operator based on the data generated by the GLIS-MINI:

  1. Pass – natural diamond
  2. Refer

‘Refer’ could indicate potential synthetic diamonds, diamond simulants and diamonds. The referrals should be tested further for full verification.

Instrument Specifications

Size: 25 cm (W) x 15 cm (D) x 13 cm (H)
Weight: 3 kg
Price: 5,500 USD (June 2021)

Contact information

Charles@gzbiaoqi.com
+86 13310897669

ASSURE Tested November 2019
ASSURE ID: 49079