Refractometer white For the partially sighted_No Now look at the finest

Now look at the finest detail

Weighs down to 0

Gives correct results about 95% of the time (6% false positive rate

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Refractometer white For the partially sighted_No Now look at the finestSummary For the gemmologist the refractometer is the most important gem tester after a loupe. It measures refractive index (to what extent light is bent as it passes through the gemstone). This product is intended for gemmologists (or those about to study gemmology) instructions are not included. Advanced model, has the advantages (over the standard model): large eyepiece enables easy viewing of the measuring scale (much easier than on a standard