Jewelers use magnification to read the laser inscription on the rocks and trust what it says. Most jewelers don’t have the equipment to detect the trace gasses and impurities that identify mined rocks.
It’s possible to make lab grown gems with those impurities, but you end up with the shittier product that is mined diamonds
more difficult than that iirc
https://www.gia.edu/hpht-and-cvd-diamond-growth-processes
Jewelers use magnification to read the laser inscription on the rocks and trust what it says. Most jewelers don’t have the equipment to detect the trace gasses and impurities that identify mined rocks.
It’s possible to make lab grown gems with those impurities, but you end up with the shittier product that is mined diamonds