AMS2 is a desktop fully automated diamond verification instrument. AMS2 is designed to screen large quantities of loose stones at high speed. AMS2 automatically separates diamonds, synthetic diamonds and diamond simulants.
The performance metrics shown below are based on testing done in 2019 using the ASSURE 1.0 test standard and sample sets. More recent test results for AMS2 can be found here in the ASSURE 2.0 Directory.
Weight: 0.0033 ct-0.20 ct for round brilliants
Size: 0.90 mm-3.80 mm for round brilliants and 1.00 mm-4.00 mm for fancy cuts
Colour: D-J (failsafe across all colours although natural fancy colours will give a higher referral rate)
Shape: All
Diamond Simulants: Yes
Mounted Stones: No
The below results demonstrate the performance of the AMS2 with the ASSURE 1.0 Core Sample:
Diamond False Positive Rate (optimal rate 0%): 0%
Diamond Referral Rate (optimal rate 0%): 0.7%
Diamond Accuracy Rate (optimal rate 100%): 99.1%
Speed (stones tested per hour): 2,677
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 AMS2 with the ASSURE 1.0 Smalls Sample:
Diamond False Positive Rate (optimal rate 0%): 0%
Diamond Referral Rate (optimal rate 0%): 0.7%
Diamond Accuracy Rate (optimal rate 100%): 98.9%
Speed (stones tested per hour): 2,677
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: Yes
Automated Results: Yes
Automated Dispense: Yes
Detect or Refer (Synthetic Diamonds): Detect
Detect or Refer (Diamond Simulants): Detect
Multiple Stones at Once: Yes
Training Required: No
The user loads up to 500 carats of loose polished stones into the AMS2 in a specific size range. The instrument then automatically processes the stones and dispenses them into their respective category.
AMS2 dispenses the stones into four categories:
‘Refer’ could indicate potential synthetic diamonds and diamonds. The referrals should be tested further for full verification.
AMS2 needs to be calibrated periodically.
Size: 31.5 cm (W) x 40 cm (D) x 55 cm (H)
Weight: 25 kg
Price: 45,000 USD (February 2019)
debeersgroupservices.com/instruments
contact@debeersgroupservices.com
+44 207 858 7887
ASSURE Tested March 2019
ASSURE ID: 678514
