Presidium ULTRA AI Lab Diamond Tester

Fast, intelligent diamond screening powered by AI.

The Presidium Ultra AI Diamond Verification Instrument® is a portable desktop screening device designed to help jewelry professionals distinguish natural diamonds from CVD and HPHT lab-grown diamonds, moissanite, and cubic zirconia.

Using photoluminescence imaging combined with Presidium’s AI-powered mobile application, Ultra AI analyzes fluorescence and phosphorescence characteristics and delivers easy-to-interpret, color-coded indicative results in approximately 15 seconds.

Designed for jewelers, gemologists, diamond dealers, pawnbrokers, buyers, and other jewelry professionals, Ultra AI can screen both loose stones and mounted jewelry while providing the convenience of desktop or battery-powered operation.

Key Features

• AI-Powered Analysis: Proprietary Presidium mobile app automatically analyzes photoluminescence images and provides indicative screening results.

• Screens Natural & Lab-Grown Diamonds: Helps identify natural diamonds and CVD/HPHT lab-grown colorless diamonds, as well as moissanite and cubic zirconia.

• Fast 15-Second Testing: Quickly screen stones without lengthy testing procedures.

• Clear Color-Coded Results: Displays easy-to-understand results including DIA, LGD-HPHT, LGD-CVD, and REFER.

• Loose & Mounted Jewelry Testing: Innovative 2-in-1 testing tray accommodates loose gemstones as well as mounted jewelry.

• Tests Stones from 0.003ct: Suitable for polished gemstones of all diamond cuts with a minimum size of 0.003 carat.

• Free Mobile App: No annual subscription or recurring app fees.

• Side-by-Side Image Comparison: Toggle-view functionality helps users compare test images for easier interpretation.

• Portable Operation: Use the included Presidium power adapter or compatible 18650 rechargeable lithium batteries.

• Bluetooth® Low Energy: Connects wirelessly to a compatible smartphone.

• Built-In Safety Feature: UV light automatically shuts off when the unit is not positioned safely for testing.

• Compact & Lightweight: Approximately 900g without batteries, making it practical for countertop or mobile professional use.

How It Works

Place your loose gemstone or jewelry in the testing tray and pair the Ultra AI with a compatible smartphone using Bluetooth®. The instrument captures photoluminescence information while the Presidium mobile application analyzes the resulting images.

In approximately 15 seconds, the app presents an AI-assisted, color-coded indicative result to help you determine the appropriate next step in the diamond verification process.

Specifications

Testing Capability: Natural diamonds, CVD lab-grown diamonds, HPHT lab-grown diamonds, moissanite, and cubic zirconia

Minimum Stone Size: 0.003ct

Testing Format: Loose stones and mounted jewelry

Result Time: Approximately 15 seconds

Connectivity: Bluetooth® Low Energy (LE)

Dimensions: 233mm × 117mm × 147mm

Weight: Approx. 900g without batteries / 1,200g with batteries

Power: Included Presidium power adapter or four 3.7V 18650 rechargeable lithium batteries (batteries not included)

Recommended Operating Temperature: 18°C–27°C (65°F–80°F)

Mobile Device Requirements

iOS

• iOS 16.0 or later

• iPhone 14 Pro or newer

• Minimum 6GB RAM; 8GB or higher recommended

• Minimum 48MP camera

Android

• Android 9.0 or later

• Snapdragon 8 Gen 1 processor or equivalent

• Minimum 6GB RAM; 8GB or higher recommended

• Minimum 48MP camera

Compatible smartphone required and not included.

Ideal For

Professional jewelers, diamond dealers, gemologists, jewelry buyers, pawnbrokers, retailers, manufacturers, and other professionals who need a convenient method for screening diamonds and diamond simulants.

Important: Ultra AI provides AI-assisted indicative screening results. Results should be interpreted according to Presidium's instructions and appropriate professional verification procedures.

Mobile phone, gemstones, jewelry, and rechargeable batteries are not included unless otherwise specified.