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.