Presidium Ultra AI Diamond Verification Instrument
The Presidium Ultra AI Diamond Verification Instrument® is a portable desktop screening device designed to help jewellery professionals distinguish natural diamonds from CVD and HPHT lab-grown diamonds, moissanite and cubic zirconia.
Combining photoluminescence imaging with Presidium’s AI-powered mobile application, Ultra AI analyses fluorescence and phosphorescence characteristics to provide clear, colour-coded indicative results in approximately 15 seconds.
Suitable for jewellers, gemmologists, diamond dealers, pawnbrokers, buyers and other jewellery professionals, Ultra AI screens both loose stones and mounted jewellery, with mains-powered or battery-powered operation.
Key Features
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AI-powered analysis: The proprietary Presidium mobile app automatically analyses photoluminescence images and provides indicative screening results.
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Natural and lab-grown diamond screening: Helps distinguish natural diamonds from CVD and HPHT lab-grown colourless diamonds, as well as moissanite and cubic zirconia.
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Results in approximately 15 seconds: Screens stones quickly to support professional testing workflows.
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Clear, colour-coded results: Displays indicative results including DIA, LGD-HPHT, LGD-CVD and REFER.
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Loose and mounted jewellery testing: A two-in-one testing tray accommodates loose gemstones and mounted jewellery.
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Tests stones from 0.003 ct: Suitable for polished gemstones of all diamond cuts, with a minimum stone size of 0.003 carat.
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Free mobile app: No annual subscription or recurring app fees.
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Image comparison: Toggle-view functionality allows users to compare test images for easier interpretation.
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Flexible power options: Operates using the supplied Presidium power adaptor or compatible 18650 rechargeable lithium batteries.
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Bluetooth® Low Energy connectivity: Connects wirelessly to a compatible smartphone.
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Built-in safety feature: The UV light automatically switches off when the unit is not positioned safely for testing.
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Compact and lightweight: Weighs approximately 900 g without batteries, making it practical for worktop or mobile professional use.
How It Works
Place your loose gemstone or mounted jewellery in the testing tray and pair Ultra AI with a compatible smartphone via Bluetooth®. The instrument captures photoluminescence information, which the Presidium mobile app analyses.
In approximately 15 seconds, the app displays an AI-assisted, colour-coded indicative result to help determine the appropriate next step in the diamond verification process.
Specifications
| Specification | Details |
|---|---|
| Testing capability | Natural diamonds, CVD lab-grown diamonds, HPHT lab-grown diamonds, moissanite and cubic zirconia |
| Minimum stone size | 0.003 ct |
| Testing format | Loose stones and mounted jewellery |
| Result time | Approximately 15 seconds |
| Connectivity | Bluetooth® Low Energy (LE) |
| Dimensions | 233 × 117 × 147 mm |
| Weight | Approximately 900 g without batteries; 1,200 g with batteries |
| Power supply | Supplied Presidium power adaptor or four 3.7 V 18650 rechargeable lithium batteries |
| Batteries | Not included |
| Recommended operating temperature | 18–27°C |
Mobile Device Requirements
| Requirement | iOS | Android |
|---|---|---|
| Operating system | iOS 16.0 or later | Android 9.0 or later |
| Device or processor | iPhone 14 Pro or newer | Snapdragon 8 Gen 1 processor or equivalent |
| RAM | Minimum 6 GB; 8 GB or higher recommended | Minimum 6 GB; 8 GB or higher recommended |
| Camera | Minimum 48 MP | Minimum 48 MP |
*A compatible smartphone is required and is not included.