Alrosa Finds 235-Ct Diamond at Jubilee Pipe at Aikhal

(IDEX Online News) – Russia's Alrosa discovered a 235.16-carat diamond in late September at the Aikhal mining and concentration mill.

Alrosa said that experts believe the diamond (cleavage dark 4C category) may be worth $1.5 million-$2 million.

The diamond, with dimensions of 42.0 x 26.0 x 28.0 mm, was found at the Yubileynaya (Jubilee) diamond pipe.

It is transparent, with a yellow hue, and with small graphite-sulfide inclusions in its periphery.

"Thanks to the technological arrangements undertaken by Alrosa, the company has managed to improve diamond safety and reduce the number of affected gems. The integrity of this particular diamond is a testimonial to the well-established workmanship of miners and dressers and a high level of technological equipment," the miner said.