The Lulo Rose is the largest pink diamond found in 300 years, and could become the single most expensive gemstone ever sold.

The Lulo Rose is the largest pink diamond found in 300 years, and could become the single most expensive gemstone ever sold. (Image credit: Lucapa Diamond Corp)

A huge pink diamond may be the biggest gem of its kind found in the last 300 years, according to the miners.

The largest pink diamond in the world is 182 carats and is part of the Iranian National jewels.

According to a statement from the Lucapa Diamond Company, which owns Lulo and one other diamond mine in Angola, the new diamond has been dubbed the "Lulo Rose." The Lulo mining project has unearthed 27 diamonds weighing more than 100 carats, including the largest diamond ever found in Luanda, the "4th February Stone."

The fifth-largest diamond found at Lulo is expected to sell for more money.

Scientists don't know if the phenomenon that gives pink diamonds their rosy hue is real. The Pink Star was unearthed in South Africa in 1999. The Pink Star sold for $83 million at an auction in 2013, making it the most expensive gem ever sold.

The weight of the Lulo Rose could be reduced by up to half because it will have to be cut down from its rough form. Even if the Lulu Rose is reduced to 85 carats, it will still be a new sales record.

Since 2500 B.C., humans have been collecting and trading diamonds. They were a status symbol that only the wealthiest could afford for a long time.

Diamonds are formed when carbon deposits are exposed to the extreme heat and temperatures of the inner Earth. Diamonds can burst to the surface during volcanic eruptions, but most of them are found through mining.

Approximately 90 million carats of rough diamonds are mined for jewelry every year, generating more than $300 billion in revenue, but the industry has been associated with displacement of Indigenous peoples, worker exploitation, pollution and human rights abuses.

It was originally published on Live Science