The sentimentality is increased by the fact the necklace was given to the Queen Mother by her husband, the Queen’s father, King George VI in 1937.
It was given to mark their coronation as King and Queen, an event they never foresaw as it came after the abdication of King George’s older brother.
The Queen Mother wore it for the coronation, and at the time it contained 40 very large diamonds.
The piece has continued to be worn at important events throughout recent royal history.
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