Diamonds may be a girl's best friend, but they're your portfolio's worst nightmare. Diamond prices are caving in, and it ...

Forbes contributors publish independent expert analyses and insights. Specialist in global markets, economics and alternative investments. Insuring diamond jewelry has traditionally been simple. The ...

When San Francisco resident Nathan Chan was shopping for an engagement ring for his fiancee in 2018, he was looking for a diamond but “wasn’t too thrilled at what I found.” Then a friend told him ...