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Presidium Electronic Refractive Index Meter Review

2

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Terrible

Revainrating 1 out of 5  
Rating 
1.0
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Description of Presidium Electronic Refractive Index Meter

Helps to identify diamonds, moissanites, and colored gemstones. Continual elimination of the possible gemstones through values such as via R.I. Color, Hardness and S.G. Tests on transparent gemstones, with flat polished surface, Ideal for separation of gemstones. Speed up on the identification of gemstones in parcel, RI liquid not required. Consistent and reliable results every time, Clear and visible display for ease of reading measurements.

Reviews

Global ratings 2
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Type of review

Revainrating 1 out of 5

WOW WHAT A REFRACTMETER

I really like this refractometer. It's so easy to use and so simple I had a few questions about it so I just emailed the company and asked a question and they responded right away. If you collect gems, this refractometer is a must have. I use mine every day. All you have to do is turn it on, place the gem on the platform and put the lid on it and it will automatically read it, take your card and find the gem's name. and it even comes with a refractive index chart, although it's not a big chart…

Pros
  • Permanent elimination of possible gems with values such as refraction, color, hardness and specific gravity
Cons
  • Dear

Revainrating 1 out of 5

Bad service and can't trust reading.

I have reviewed it before and gave it 4 stars. I had only had it for a few months at the time. Here it is at the 10 month mark and I am really dissatisfied with this product. Evil is the best word. I wasted 100 hours before I knew it needed recalibrating. For six or seven months it worked quite well. But then the problems started. For example, the digital reading may be (RI) equal to 1.597. However, if checked manually, the correct value would be 1.619. This is a crazy mistake. The machine…

Pros
  • Speed up identification of gemstones in packaging, no RI liquid required
Cons
  • Some errors