Diamonds made from atmospheric CO2 would have a wide marketing appeal, and their provenance would be easy to distinguish (as the synthetic route involves captur

Diamonds made from atmospheric CO2 would have a wide marketing appeal, and their provenance would be easy to distinguish (as the synthetic route involves capture of atmospheric CO2, conversion to methane as the synthetic diamond feedstock, so they'd have the same 14C content as atmospheric CO2 does). Eventually I imagine diamonds will go the way of aluminum, which used to be very hard to produce and so was valued similarly to silver and gold, and so was also seen as a material wealth flex (e.g. Napoleon's aluminum dining set etc.). It'll be just another industrial material.