Antiques Roadshow expert Susan Rumfitt floored a guest when she revealed the true value of her diamond brooch.

A remarkably rare sapphire and diamond ring was the headline item of a recent auction in Hong Kong, selling for $USD9.5 million ($AUD14.61 million).

Aside from Meghan and Lili's sweet bond, it was Prince Harry's wife's sparkling pinky ring that was the most unmissable ...