CARATS
| Date | Clue |
|---|---|
| 2023-11-10 | Units divided into 100 points |
| 2023-08-13 | Pearl units |
| 2019-07-13 | 200-milligram units |
| 2019-04-24 | Ring figures |
| 2017-09-03 | Diamond figures |
| 2017-06-20 | Diamonds are weighed in them |
| 2014-07-27 | Cartier units |
| 2014-01-12 | Stone figures? |
| 2011-10-31 | Gem units |
| 2010-10-31 | Ring figures |
| 2008-11-17 | Gem measures |
| 2008-09-09 | Ring figures? |
| 2007-07-02 | Gem units |
| 1999-03-28 | Ring figures |
| 1997-11-19 | Gemologist's concern |