There are many instruments on the market today that jewelers can use to ensure the integrity of the diamonds they’re selling to consumers. However, there isn’t one single machine that is capable of testing for everything. For example, if you use a regular diamond tester to detect lab-grown stones, the synthetics will still test as a diamond since they are physically and chemically identical to their naturally occurring counterparts. In the segment below, we’ll break down some of our newest and bestselling testers and give you some insight on function and use.
And we can’t forget about colored gemstones. This is the Presidium Gem Indicator, the only handheld tester in the industry designed specifically for colored stones. It indicates up to 31 different types of colored stones. 56-7903; $260
| Tester | What does it detect? | Why is it a must have? | Cost |
|---|---|---|---|
 Gemlogis Lapis One |
Diamond, Moissanite (including Forever One), Simulant, and Metals |
Uses “visible violet light” technology to detect Forever One Moissanite |
$200 |
 Gemlogis Ciel One |
Diamond, Moissanite (including Forever One), and Simulants |
Works seamlessly with Pistachio Referential Meter to indicate a variety of popular gemstones |
$278 |
 Sam by Presidium |
Diamond, Moissanite (including “low electrical conductivity Moissanite), and Simulants | Connects directly to PC via OMI software for a direct recording of results that can easily be sent to customers |
$300 |
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Diamonds, Moissanite (including Forever One), Sapphire, and gives Metal Alerts | Programmable talking voice alerts in 9 languages and can be calibrated |
$300 |
 Adamas by Presidium |
Diamonds (including melee), Moissanite, and gives Metal Alerts | Includes changeable tips, which allows immediate replacement of any worn or damaged tip |
$400 |
 Presidium Synthetic Diamond Screener |
Screens for synthetics or lab-grown diamonds (both CVD and HTHP) | More cost effective than most synthetic diamond screeners |
$600 |
 The PhosView |
Screens for synthetics or lab-grown diamonds (HTHP only) | Screens melee and mounted stones | $4,500 |
And we can’t forget about colored gemstones. This is the Presidium Gem Indicator, the only handheld tester in the industry designed specifically for colored stones. It indicates up to 31 different types of colored stones. 56-7903; $260