The Christie’s Geneva Magnificent Jewels auction at the Four Seasons Hotel des Bergues achieved more than $75.8 million.

A Christie's employee displays the Mellon Blue, a fancy vivid blue pear-shaped diamond of 9.51 carats, during a preview at ...

A blue diamond weighing nearly 10 carats has sold at auction in Switzerland for 20.5 million Swiss francs ($25.6 million) ...

As the name would suggest, the upcoming full moon is a rare occurrence that won't happen again until 2037 Kelsie Gibson is the Senior News Editor of Society and Culture at PEOPLE. She has been working ...

Large in the sky and perfectly round, Monday night’s super blue moon is an attention-getter. But how rare, really, is it? It is unusual because it’s both blue and super. According to NASA, about 25% ...

A rare astronomical event will occur Monday night, with those in the DMV able to see a super blue moon. The moon will officially go from a waxing gibbous to a full moon at 2:26 PM and will begin to ...

First came a solar eclipse. Then a “strawberry moon.” Now, celestial enthusiasts can look forward to seeing a super blue moon this week starting Monday. The full moon, which will be both a supermoon ...

Stargazers will soon enjoy a once-in-a-Blue-Moon experience when they get to see a super Blue Moon. The moon will appear full for three days, from Sunday morning through early Wednesday morning, with ...

Celestial events happen once in a blue moon. On Monday, a super blue moon lit up the night sky, giving people a glimpse at this rare spectacle. August's full moon also goes under different monikers: ...