As this article seems to have caused some confussion I managed to access the Google cached page to read it fully.
Firstly to clear up the 'Queen Consort/Regnant'
A queen regnant is a queen in her own right
With all the powers of a monarch, who (usually) has become queen by inheriting the throne upon the death of the previous monarch.
A queen consort is the wife of a reigning king
Kate will be
Queen Consort.
O.k. now onto the
CROWN
This is why I thought best read it myself as I was confused thinking I'd missed something
That part I think is all speculation?
There is
NO specific '
Consort Crown'
Queen Consorts have all had their own crown made in recent times.
All British queens consort in the 20th century, Alexandra of Denmark, Mary of Teck and Elizabeth Bowes-Lyon, wore their own specially made consort crowns, made in 1902, 1911 and 1937 respectively
The crown in the article is;
Queen Elizabeth The Queen Mother's Crown
1937
Provenance
The crown was created for Queen Elizabeth for the coronation of King George VI on 12 May 1937.
This crown was made in 1937 for Queen Elizabeth, consort of King George VI, using many stones already in the collection. Most of the diamonds were removed from Queen Victoria's Regal Circlet.
Crown Trivia...
After the death of the king, Queen Elizabeth, known thereafter as the Queen Mother, did not wear the full crown, but wore it minus the arches as a circlet at the coronation of her daughter,
It was placed on top of the Queen Mother's coffin for her lying-in-state and funeral in 2002
The crown is on public display along with the other Crown Jewels in the Jewel House at the Tower of London

That all said I suspect Kate will possibly remodel it (or someother crown in the collection?) rather than have her own made from scratch - imagine all the outrage that would cause lol
The
'Koh-I-Noor Diamond'
well that's a whole other story...
Royal Collection Trust
Garrard & Co - Queen Elizabeth The Queen Mothers Crown
Crown of Queen Elizabeth The Queen Mother - Wikipedia
Consort crown - Wikipedia