Sapphire jubilee
In 2017, the term sapphire jubilee or blue sapphire jubilee was coined for the celebrations to mark the 65th anniversary of the reign of Queen Elizabeth II. Previously, the sapphire wedding anniversary was understood to be the 45th, and this would be expected to carry over to regnal anniversaries as with silver, golden, and diamond jubilees.
65-year reign anniversaries in recent history
| Notable person | Year of Jubilee |
| King Louis XIV of France | 1708 |
| King Ferdinand III of Sicily | 1824 |
| Emperor Franz Joseph I of Austria-Hungary | 1913 |
| Prince Johannes II of Liechtenstein | 1923 |
| King Sobhuza II of Swaziland | 1964 |
| King Bhumibol Adulyadej of Thailand | 2011 |
| Pope Benedict XVI, sapphire priesthood. | 2016 |
| Queen Elizabeth II of the United Kingdom and the other Commonwealth Realms | 2017 |