Camilla's engagement ring is 'traditional' while Diana's 'broke royal tradition'

Max explained: “Camilla’s three-stone diamond ring is traditional, while Diana’s sapphire ring is bold, and broke royal tradition at the time.

“I’d estimate Camilla’s ring to be worth around £212,500 on today’s market, while Princess Diana’s is worth around £390,000 and is likely to increase further due to its history, beauty and priceless legacy.”

Although Diana’s ring is more valuable, the diamond expert added that the Duchess of Cornwall’s ring is still “one of the most extensive and expensive in the Royal Family”.