| 2026-07-01 | Gemstone with biological roots |
| 2026-02-01 | Bit of wisdom |
| 2025-12-28 | Bit of wisdom |
| 2024-01-16 | June birthstone |
| 2023-10-09 | Oyster's gem |
| 2023-09-07 | Cultured sort? |
| 2023-03-15 | Bit of wisdom |
| 2022-09-12 | Oyster's prize |
| 2022-07-15 | See 4-Down |
| 2022-05-30 | Gem from an oyster |
| 2022-04-04 | Gem from an oyster |
| 2021-12-26 | One hanging around Queen Elizabeth? |
| 2021-04-05 | Oyster's creation |
| 2020-11-23 | White gemstone |
| 2020-09-19 | Beauty |
| 2020-07-15 | Off-white shade |
| 2019-12-30 | Gem in an oyster |
| 2019-09-04 | June birthstone |
| 2018-10-01 | Gem strung on a necklace |
| 2018-08-02 | Shade of white |
| 2018-07-27 | Bit of wisdom |
| 2016-05-16 | Gem whose authenticity can be checked by rubbing it against the teeth |
| 2015-08-22 | Fine example |
| 2015-03-24 | Shade of white |
| 2013-08-23 | Unit of wisdom? |
| 2013-01-16 | [30] |
| 2011-09-07 | Cultured gem |
| 2010-07-02 | Beauty |
| 2009-02-18 | ___ onion |
| 2007-05-02 | Shade of gray |
| 2007-04-29 | Masterpiece |
| 2007-02-07 | It may start as a grain of sand |
| 2006-10-16 | Gem of an oyster |
| 2006-08-02 | Small treasure |
| 2004-12-02 | Stickpin head |
| 2004-11-28 | Unit of wisdom? |
| 2003-09-22 | Oyster's prize |
| 2002-09-08 | June birthstone |
| 2002-04-29 | Oyster's prize |
| 2001-08-05 | Modern June birthstone |
| 2001-06-11 | Oyster's prize |
| 2001-04-24 | Necklace item |
| 1999-01-18 | Oyster's center |
| 1996-12-01 | Precious one |
| 1996-05-22 | Shade of gray |
| 1995-09-15 | Bit of wisdom |
| 1995-09-10 | Janis Joplin, to her fans |
| 1995-07-02 | Rock's _____ Jam |
| 1995-03-05 | 5 point type |
| 1994-03-19 | Hester Prynne's daughter |
| 1994-01-09 | Oyster catch? |