Now I've seen everything!
This looks like some kind of marketing scheme to sell more diamonds. Don't you think? I mean this is the worst idea since the taxidermy was thought out. How can one person place a price of another person's life--not along carrying them around in his/her jewelry? I'm not bashing the idea of keeping the memory of the loved ones, but the people who came up with this idea to exploit their sorrow in the name of almighty money.
Stick a fork in me, god, because I'm done and have seen everything and I'm ready to die in peace.

Good grief...
I couldn't figure out the process which cremated ashes are to be fused with the diamond. If the whole diamond is made from carbon ashes then it's not a real natural diamond. That means it will depreciate over the periods of time. Then, it's not actually an investment over the life time (as the website claims) but simply carrying around an urn, a very expensive urn in pretty enclosure. HA! And what would happen if someone decides to pawn that diamond? Yuck! I hate to be the one who purchase dead person's diamond with the dead inside.