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 AI-powered analysis: The proprietary Presidium mobile app automatically analyses photoluminescence images and provides indicative screening results. 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. Results in approximately 15 seconds: Screens stones quickly to support professional testing workflows. Clear, colour-coded results: Displays indicative results including DIA, LGD-HPHT, LGD-CVD and REFER. Loose and mounted jewellery testing: A two-in-one testing tray accommodates loose gemstones and mounted jewellery. Tests stones from 0.003 ct: Suitable for polished gemstones of all diamond cuts, with a minimum stone size of 0.003 carat. Free mobile app: No annual subscription or recurring app fees. Image comparison: Toggle-view functionality allows users to compare test images for easier interpretation. Flexible power options: Operates using the supplied Presidium power adaptor or compatible 18650 rechargeable lithium batteries. Bluetooth® Low Energy connectivity: Connects wirelessly to a compatible smartphone. Built-in safety feature: The UV light automatically switches off when the unit is not positioned safely for testing. 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.