Antwerp Diamond Polishers Develop Device That Uses AI to Grade Colored Stones

Fancy colour diamonds

Chroma Diamonds founded by Alexander Appels and Jan De Henau is a relatively new company in the Antwerp diamond district, which specializes in colored diamonds. Stymied by the relatively “subjective process of color grading”, the 2 have set out on a mission to develop a device that provides more objective measurements for the grading of colored stones.

The device will utilize AI gathering data points and becoming smarter with each new set of inputs. They believe with sufficient time the device would learn enough to be able to more accurately grade certain stones, especially in resolving cases where certain grading criteria place the value of diamond on the edge of a color category but not quite enough to satisfy it being classified in the next grade above.

“Customers come to us with high expectations. After all, the value of their diamond is determined by, among other things, the color and intensity of that color, and let it (partly) depend on the cut and the people in the grading office, we hear. Because it is they who assign the diamond an official color, and therefore also determine its value definitively,” explains Appels.

Though this idea is not new to the Diamond District the duo has taken things one step further receiving support from the innovation process of the City of Antwerp. They plan on using and testing the device in their own business first as proof-of-concept before taking it to the greater market.

Source: Bloovi

Stolen Dresden diamonds recovered in Berlin police raid

                The Dresden Green Diamond

German police seized large parts of the stolen treasures from the 2019 looting of Dresden’s famous “Green Vault.”

During a raid in Berlin in the early hours of Saturday, police special forces and public prosecutors found and secured 31 items representing a “significant part” of the stolen artifacts, authorities said.

In an initial inspection, investigators found that several pieces appeared to be intact, among them the hat decoration and star of the Polish Order of the White Eagle from the stolen diamond set.

The items were transferred to Dresden under the protection of special police forces, where they’ll be examined forensically and then by specialists from the Dresden State Art Collections to check their authenticity.

The Dresden incident was one of a number of heists carried out at German museums in recent years. In November, thieves broke into a museum in Bavaria and made off with nearly 500 ancient gold coins worth several million euros.

In 2020, a Berlin court convicted three men of stealing a 100-kilogram (220-pound) gold coin worth $4 million from a museum in the center of the German capital.

Source: mining.com