I have a little pendant with black and white diamonds from a reputable local jewelry store. I didn't think to ask what exactly the black diamonds were - I liked the item and the price was reasonable. Charley teased me about buying coal in a jewelry store, and I suppose that to the extent I thought about it at all I suspected it was some form of that hard, shiny coal. All the stones are pretty tiny - which seems reasonable if the stone is as difficult to cut as it sounded from some of the information above. I'm quite sure that what I have isn't hematite, and I will check to see if it's radioactive - though I very much doubt it, considering the source. There were matching earrings, but I didn't see a ring - and while the total weight might be reasonable, the individual stones are tiny. But some black diamond jewelry is out there.

JudyB