The auctioneers, based at Cordwallis Business Park, said the jewellery offers the chance for potential buyers to own a piece of cinematic and fashion history.
“Emma Watson’s choice of this ring for such a significant event in film history only adds to its allure and provenance,” the company said.
The ring features a design compromising a central round cut diamond, weighing 1.50ct, and is surrounded by an array of pear and heart-shaped cut diamonds totalling more than 4ct.
In total, the central stone is flanked by four pear-shaped diamonds and four heart-shaped diamonds.

The hallmark of renowned jeweller Boodles is also stamped on the jewellery.
“Interested collectors and fans are encouraged to participate in this rare opportunity to acquire a piece as unique and enchanting as the stories of the wizarding world it once celebrated,” a statement from Dawsons Auctioneers added.
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