| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Some scientists think Uranus' atmosphere may compress carbon atoms into these, putting the ice in ice giant | diamonds DD | $1,400 | J | WEIRD SCIENCE | 2022-10-13 | #8719 | |
| While trying to create these precious stones in a lab, Edward Acheson came up with carborundum | diamonds | $100 | J | 1890s SCIENCE | 2000-03-02 | #3574 | |
| These gems are found in volcanic vents filled with a substance called kimberlite or blue ground | diamonds | $500 | J | SCIENCE | 1992-10-09 | #1860 |