Easy to use. LED light and audio result indication. The red light will be shown and the audio indicator will emit beeping sound if the stone is a real diamond. Metal alert for continuous buzzing sound when user accidentally touches metal rather than stone. If the stone is diamond simulated one, no beeping sound or red lights on. Simple calibration for stones of various sizes. With a testing platform for loose stones. Lightweight and easy to carry. Instantly distinguishes diamond from CZ and common simulants (excluding moissanite) Distinctive audio and visual signals Low battery warning Completely portable Fast warm-up time and immediate recovery Powered by 1pc 9-volt battery (included) Made in Japan The Diamond Selector II is a professional and portable diamond tester built to quickly distinguish diamond from CZ common simulants such as white corundum, YAG, and american diamond. The Diamond Selector II will test stones both large and small, mounted or unmounted, with ease and reliability. This is the most affordable diamond tester on the market today. This tester is perfect for the working jewelry professional, jewelry lover, and flea market attendees, it's simplistic but accurate testing to ensure that you don't make a bad purchase. One error could cost more than this tester. Never second guess again! Operating on 1 long-lasting 9-Volt battery (included), this tester will automatically alert you for low battery. This diamond selector doesn't react on stones like fake crystals, or simulants such as cubic zirconium, when the probe touches the surface. It is the easiest answer for the vast majority of retail jewelers, pawn brokers and chain stores when faced with the decision of which diamond selector to buy. Why? Because it works reliably and share the most advanced diamond selector technology on the market.
