GemPen® is a handheld diamond verification instrument for loose and mounted stones, designed to separate diamonds from synthetic diamonds. It is suitable for field gemmologists, diamond buyers, wholesalers, and retailers.
The performance metrics shown below are based on testing done in 2019 using the ASSURE 1.0 test standard and sample sets. GemPen® has not been tested under ASSURE 2.0.
Weight: All
Size: All
Colour: D-M
Shape: All
Diamond Simulants: No
Mounted Stones: Yes (not yet ASSURE Tested)
The below results demonstrate the performance of the GemPen® with the ASSURE 1.0 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 1.0 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 1.0 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 1.0 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.
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.
Size: 24 cm (L) x 3.6 cm (W) x 3.2 cm (H)
Weight: 0.4 kg
Price: 2,300 USD (April 2019)
gemometrics.com
info@gemometrics.com
+46 72 44 99 05060
ASSURE Tested May 2019
ASSURE ID: 14933
