Didn't they develop some type of photographic finger print for diamonds and their inclusions? I thought I saw that on the news(years ago) for some high end diamonds. That way they can keep a record of the owners. If they were stolen or lost then they could be traced back to the seller/owner. I assume a diamond of that size would be "high end" and have a record of it. .....
You could be right.
And if not an "inclusion finger print," possibly a serial number or some other etched mark.....
BB67 and MH-9162013 : This subject has come up on md'ing forums before. Which brings up ... uh .... *interesting* conversation about Lost & Found issues. Eg.: If you try to sell it, you bump into nuances of "found vs stolen". And has ramifications into lost & found laws (where you can't just "find" a mountain bike leaning next to a park bench, and go sell it, blah blah ).
I had not heard of what BB67 alludes to . Where some sort of genetic type fingerprint ID can be mapped out (since no two diamonds are ever 100% identical ). And put into some sort of data-base. Where that diamond is now "unique on planet earth", etc...
But I had heard of what MH9162013 is speaking of : micro-laser-engraving, where a serial # is etched into the diamond. So small that it needs a microscope to see it. This is done for insurance purposes. Or done at wherever the diamond mining is going on , so that you can trace the diamond back to the mine of origination, etc.... But, from what I heard, is only for extremely large/expensive stones. And is only discerned, thereafter, if someone is using specialized equipment to look for, or see, this ID #.
It brings up interesting ramifications, for the next time you or I find that nice 2 carat diamond, and just *assume* that we can sell that puppy, in the same way we'd be selling our melt silver & gold. Eh ?