This is a cheap and cheerful loupe. Use the 20X to see a laser inscription and confirm a diamond matches it’s certificate report. You will need good light but you will be able to make out the numbers. The 10X is good enough to see VS-sized inclusions. For higher clarity diamonds like VVS, you need our $35 loupe. Note, it says a 5 element lens, not true – there are only 2 lenses, but they do the job.