It seems like your microphone is disabled. In order to commence the call, make sure you close this box then unblock your mic in your browser settings. On left is surely an octahedral normal diamond crystal. On right is an HPHT laboratory-developed diamond crystal. While not common, synthetic diamonds https://podcasters.spotify.com/pod/show/carat2/episodes/Sustainable-Elegance-Exploring-Emerald-Cut-Lab-Grown-Diamond-Rings-with-Lily-Green-e2hj775