Best Diamond Testers

INDUSTRY’S THINNEST TIP: Detects colorless diamonds, moissanites, simulants instantly with metal alert. Accurate testing on colorless diamonds as small as 0.02 carats and diamond melees as small as 0.01 carats with micro probe purchased separately
DYNAMIC MICRO LED DISPLAY: Bright LED display provides clear and precise results. Automatic power off after 2 minutes of inactivity.
SLEEK ERGONOMIC STYLING: Sleek light and portable design with chrome-brushed tip and ergonomic grip provides an easy and comfortable hand hold. Power with 3 x AAA batteries or included USB cable and adapter
EASY-TO-USE INTERCHANGEABLE PROBE: Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone, for enhanced accuracy. Damaged probes are easily replaced without downtime.
BUILT-IN MEMORY: Memory chip conveniently stores up to 500 previous test records.

Discontinuous beep and flashing green light indicates Moissanite or synthetic gem ston
Used to test Moissanites, No waiting between tests.
Operates only on 9-volt alkaline battery (included).
Includes probe cover & loose stone holder.
Two year Limited Warranty. Made in U.S.A.

Identifies, detects and separates diamond from CZ, moissanite and white sapphire with New Enhanced M
New Enhanced Moissanite Testing Technology for low conductivity stone identification
LED stone illumination and UV fluorescence detection,Retractable probe tip with enhanced durability
Powered by MICRO USB or with its included rechargeable NiMH batteries, or your AAA Akaline Batteries
Unprecedented 10-YEAR PROBE TIP WARRANTY; Lifetime Limited Replacement Warranty on the tester

INDUSTRIES MOST TRUSTED gemstone tester redesigned to be more compact, sturdy and portable
THINNEST RETRACTABLE PROBE TIP: Presidium Gem Tester II features the industry’s thinnest (0.6mm) retractable probe tip ensuring constant pressure between probe and gemstone. For testing colored gemstones as small as 0.02 carats. Coated gemstones can also be generally tested with PGT II
VERSATILE AND RELIABLE: Consistent and reliable results every time. Identifies diamonds/moissanites and most common colored gemstones, both polished and unpolished.
SIMPLE & EASY TO USE: Clear and easy-to-read analog dial; Can differentiate between 16 types of gemstones with no waiting between tests
IMPORTANT TO NOTE | Calibration may be required for accuracy. Please see included instructions for calibrating your unit prior to use.