Rubies are already rarer than diamonds. But star rubies are something incredibly special. A collection of four "extraordinary" rare star rubies discovered outside of Asheville, North Carolina, nearly ...

"If you look at a top-quality, gem quality ruby versus the top quality of a diamond – let's say they're five carats each – the ruby is going to be much rarer and much more expensive than that ...

In the realm of gemstones, the ruby is often referred to as the "king of gems." Renowned for its stunning beauty and allure, this vibrant red stone is also regarded as one of the most potent gemstones ...

The 55.22-carat Estrela de Fura is the most valuable ruby ever sold at auction - Copyright AFP TIMOTHY A. CLARY The 55.22-carat Estrela de Fura is the most valuable ...