Famous opals

The Andamooka Opal, presented to Queen Elizabeth II, also known as the Queen's Opal
The Aurora Australis Opal, considered to be the most valuable black opal
The Black Prince Opal, originally known as Harlequin Prince
The Empress of Australia Opal
The Fire Queen Opal
The Flame Queen Opal
The Flamingo Opal
The Halley's Comet Opal, the world's largest uncut black opal
The Jupiter Five Opal
The Olympic Australis Opal, reported to be the largest and most valuable uncut gem opal ever found
The Pride of Australia Opal, also known as the Red Emperor Opal
The Red Admiral Opal, also known as the Butterfly Stone
The Roebling Opal, Smithsonian Museum [12]