| Clue | Source | Date |
|---|---|---|
| Small glass disk used as an ornament in a stained-glass window | New York Times | 15 Oct 2016 |
| Small glass disk used as an ornament in a stained-glass window | ||
| Jeweler's spacer bead | Universal | 07 Nov 2015 |
| Jeweler's spacer bead | ||
| Jeweler's spacer bead | ||
| Bead separator | ||
| Circular diamond | ||
| Type of diamond |