Queen Sonja also wore a longer collet. Do you think it is a third necklace ?
Four diamond collets were worn to Princess Martha Louise and Ari Behn's wedding in 2002:
Queen Sonja wore Queen Maud's two wedding gift collets from 1896.
Princess Astrid wore her mother's wedding gift collet from her parents, Princess Ingeborg and Prince Carl, 1929.
Princess Ragnhild wore her mother's long collet (larger diamonds).
(I read somewhere that CP Martha's long diamond collet might be an heirloom from her aunt Princess Thyra of Denmark, but don't quote me on that as I can’t remember the source or if it is correct).
CP Martha’s two diamond collets:

Previous Message
Dear all,
Further to the informations read, Queen Mary had on least 2 diamond collet necklaces :
- Diamond necklace from Crown Prince & Princess of Denmark ;
- A Diamond Riviere bequethed to Princess Maud (eighteen yeas ago) by her godmother the late Duchess of Inverness, especially for the occasion of her mariage ;
Do you know if Queen Mary had other diamond collet necklaces ?
Indeed, the royal family has on least :
- Queen Sonja : double riviere necklaces from the collection of Queen Maud (Small diamond necklaces) and a longer diamond riviere maybe Crown Princess Märtha.
- Princess Ragnhild, Mrs. Lorentzen. : The diamond riviere necklace comes from Queen Maud. (with bigger diamonds);
- Princess Astrid : diamond necklace from Queen Maud ;
Can you recognize the rivieres ?
Best regards,
Franck