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). | Source: Christie's

An antique cushion-shaped 35-carat sapphire in a band set with round diamonds ring, known as the Regent Kashmir.

4.08-carat fancy vivid purple-pink diamond set in a ring with round diamonds along the band.

An antique 28-carat cushion brilliant-cut Burmese sapphire ring