Six out of 10 people in our poll said the unfinished Diverging Diamond isn't working. But others want to see how its going ...

Researchers reveal that plasmons in boron-doped diamonds are driving advances in electronics, optics and quantum computing.

DEAR BEJEWELED: It appears the diamond has brought only bad luck to the two women who have worn it. You know its monetary value, so consider taking it to a jeweler and discussing a trade-in for ...