How long until synthetics are passed off as natural? Or maybe there's already a lot of that going on. Conflict diamonds are already "laundered" so why not synth

How long until synthetics are passed off as natural? Or maybe there's already a lot of that going on. Conflict diamonds are already "laundered" so why not synthetic. > Because it’s so difficult to distinguish between mined and lab diamonds (even for jewelers), diamond grading institutions inscribe LG or Laboratory-Grown on the rim of lab-grown diamonds, visible at 20-times magnification.