Stone Size
First, consider the size of your stone.
Many people buy stones online or at trade shows, where measurements are supposed to follow standard sizes.
However, some lapidaries hand-cut their stones in unique dimensions, which can throw off your design plans.
You might also end up with a slightly smaller stone if a dealer isn't entirely honest.
After all, are you really going to measure every stone before you buy it? And how could you, anyway?
Well, to measure a stone, we use calipers.
We have plastic, brass, stainless steel, and electronic calipers for measuring gemstones and beads.
These calipers will give you an accurate measurement of the size of a cabochon, gem, or bead.