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Review on Professional Accuracy Indicator Gemstone Selector by Robert Bridgewater

Revainrating 5 out of 5

Hasn't disappointed yet - great for watch crystals and gems

I'm a watch enthusiast, mostly buy cheap and used watches so I have this to make sure I get the sapphire crystal when that was advertised. So you can quickly and easily distinguish between sapphire glass and mineral glass on the dial. Of course, this also works with diamonds compared to zirconia etc.

Pros
  • Lots of positive vibes
Cons
  • Negative gift