The black star of Queensland. Sapphires and rubies were created many millions of years ago through one of two geological processes: metamorphic (involving rock transformation) ...

The Black Star Sapphire of Queensland, valued at $100 million, will be on display at the Royal Ontario Museum starting June 2.

A privately owned jewel threatens to outshine the Michael Lee Chin Crystal next month when the Royal Ontario Museum opens its new galleries. A symbol of faith, hope and destiny in many cultures, this ...

It is the featured pendant on a necklace comprised of 70 black star sapphires, totaling an additional 104.42 carats. The entire piece is set in 18k rose gold and has a retail price of $5 million.

Hollywood jeweler Jack Armstrong is putting a 733-carat jewel, the Black Star of Queensland sapphire, on the market -- but he's not willing to let go of it if he doesn't get his price.