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💎 Spot the real sparkle before anyone else does!
The SAM by Presidium is a cutting-edge diamond tester designed for professionals who demand precision. It accurately distinguishes natural diamonds from a wide range of moissanites—including the newest low electrical conductivity variants—using a highly sensitive thermoelectric probe. Suitable for stones between 0.01 and 10 carats, it offers rapid startup and testing times, and a robust battery life capable of 2,000 continuous tests powered by USB or AAA batteries. Ideal for jewelers, gemologists, and diamond buyers seeking reliable, on-the-spot gemstone verification.
| ASIN | B0774WPNGL |
| Batteries | 3 AAA batteries required. |
| Batteries required | No |
| Customer Reviews | 4.4 4.4 out of 5 stars (16) |
| Date First Available | 24 Mar. 2018 |
| Item model number | SAM |
| Item weight | 55 Grams |
| Product Dimensions | 16.99 x 3.05 x 2.79 cm; 55 g |
M**N
I had 2 stones that my other diamond tester tested as diamond so I purchased and then sent to GIA for testing only to have them sent back as Moissanite. Purchased this and it showed that they were indeed Moissanite. My old tester was purchased new in 2015 but the technology had already advanced in making new types of Moissanite that it was outdated. I am happy with this and hope they will not come out with even more improved Moissanite for many years/
C**L
This is a great tester just wish it wasn’t so finicky about the stones having to be 100% clean. The slightest bit of dirt in a setting drops it’s accuracy down to 70%. Which can be annoying especially when your on the road. I have found that loose super clean stone do test positive 95% of the time.
A**H
The device i received is not working at all (might be a manufacturers defect), the blue light keeps blinking and never stops but the seller was on time to be honesf.. i’ll return the device and try again maybe?.
D**A
This product does not come with batteries OR a power cable! It misidentified everything I tested it on. Not at all worth the expensive price tag. I sent it back the next day.
A**N
Did not accurately test very poor product waste of money skip this one.
Trustpilot
3 days ago
3 weeks ago