"Mandarin garnet" specimens are the most in demand and the most expensive. Spessartine gem quality stones are rarely larger ...

So, what makes black opal so hard to find? And why is it so expensive? Black opal is one of the most enchanting stones in the world, sought after for its seemingly infinite display of colors.

Black diamonds are a rare and expensive type of stone colored by graphite under intense heat and pressure.

Is Onyx expensive? This black onyx stone comes from deep within the Earth and is packed with lots of tiny crystals.

Sly Stone's three children discuss their relationship with their father in the new documentary 'Sly Lives! (aka the Burden of Black Genius), which is now streaming on Hulu.

THESE stones are more expensive than diamond or platinum, it is found only at…, names are… According to the California Institute of Technology's mineral database, it is a small deep orange ...

Gemstones have been a topic of fascination to human beings for centuries, not just for their beauty, but also for how rare they are, what they symbolise, and that they are worth millions. While ...

A rare and unique First Temple-era stone seal inscribed with a name in paleo-Hebrew script has been uncovered near Jerusalem’s Temple Mount, the Israel Antiquities Authority announced on August ...

In northern Portugal, a geological phenomenon has baffled scientists for decades: the rare Pedras Parideiras, or "Birthing Stones", which appear to miraculously spawn baby rocks.

An "extremely rare and unusual" ancient stone artifact—thought to be around 2,700 years old—has been discovered in Jerusalem. The artifact in question, a seal made of black stone, was ...

Matty Healy proposed to model Gabbriette Bechtel with a black diamond engagement ring that experts tell Page Six Style is rare and unique.