Episode – 1991 : Synthetic Diamonds Podcast Transcript For thousands of years, diamonds have been among the most valuable substances on Earth. Diamonds are not only the hardest substances known, […]
Episode – 0724 : Diamonds Are Forever
Episode – 0724 : Diamonds Are Forever Podcast Transcript It has been said that they are a girl’s best friend, they are forever, and that they are the hardest substance […]