Reason to smile: Starry Starry Night Cocktail Ring featuring a 17.50-carat Australian black opal, by Queensland jeweller Margot McKinney. For a jewellery house in The Rocks, Sydney’s ground ...

For Monica Rich Kosann, whose high jewelry collection, The Jewels of Nature, uses rare Australian black and crystal opals and ...

It's been more than a decade to market for one of the world's most impressive opals, which will be on sale this weekend at an upscale jewelry event ... it in the Australian outback.

or as tacky jewellery that tourists would buy from Australian airports. In another boost to opal's comeback, Dior's latest jewellery collection is centred on the gemstone. "Every opal is ...