Stone Testing Capability

Weight: All
Size: All
Colour: D-M
Shape: All
Diamond Simulants: No
Mounted Stones: Yes (not yet ASSURE Tested)

Instrument Performance

The below results demonstrate the performance of the GemPen® with the ASSURE Core Sample:

Diamond False Positive Rate (optimal rate 0%): 15.1%
Diamond Referral Rate (optimal rate 0%): N/A
Diamond Accuracy Rate (optimal rate 100%): 98.7%
Speed (stones tested per hour): 813

The ASSURE 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.

The below results demonstrate the performance of the GemPen® with the ASSURE Smalls Sample:

Diamond False Positive Rate (optimal rate 0%): 4.7%
Diamond Referral Rate (optimal rate 0%): N/A
Diamond Accuracy Rate (optimal rate 100%): 99.5%
Speed (stones tested per hour): 813

The ASSURE Smalls Sample consists of 1,000 loose diamonds, 200 loose synthetic diamonds and 200 loose diamond simulants. 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): N/A
Multiple Stones at Once: Yes
Training Required: Yes, through an online education platform

The user manually places stones in a case that function as a darkroom. After GemPen® is turned on and directed towards a gemstone, a fluorescing effect will occur. By manually analysing this effect, with guidance from the GemPen® Diamond Map and online GemPen®, the user can determine if the stone is a natural diamond or a synthetic diamond.

Instrument Specifications

Size: 24 cm (L) x 3.6 cm (W) x 3.2 cm (H)
Weight: 0.4 kg
Price: 2,300 USD (April 2019)

Contact information

gemometrics.com
info@gemometrics.com
+46 72 44 99 05060

ASSURE Tested May 2019
ASSURE ID: 14933