This is a convertible diamond and amethyst tiara.
The tiara was a gift to Queen Sonja from King Harald,
along with matching necklace and earrings.
The tiara can also be worn as a necklace.

The necklace Sonja wears with the tiara can also be worn as two bracelets,
which she does when she wears the tiara as a necklace.
Mette-Marit wears the brooch as a pendant attatched to a diamond necklace,
as she has never been seen with the pendant and the brooch at the same time.
She has also worn the pendant attatched to the necklace that can be worn as two bracelets.

  • See Queen Sonja with this tiara here.
  • See Crown Princess Mette-Marit with this tiara here.