Mini Calipers For Measuring Opal [30051]

I've got a pair of these mini callipers on my desk for measuring opals and find them incredibly handy.  Even though I have a big set of electric callipers, these require no battery and take up almost no space.  They are not super high quality so not appropriate for calibrating stones that need to be exact, but are very good for getting quick measurements on especially rough opal which is harder to measure accurately with a ruler.

Happy Cutting!

Riley and Grace