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Investors flocked to Canada’s Star Diamond Corporation (TSX:DIAM) on Monday after the company said its Saskatchewan-based project had an “unusually high” large quantity of high-value and large rough stones.

A recent study has confirmed that about 27% of the diamonds at the company’s Orion South and Star exploration sites are type IIa, a category that represents less than 2% of all rough stones mined from kimberlites.

About 27% of the diamonds at the company’s Orion South and Star exploration sites are type IIa, the most valued and the purest kind.

The proportion of that category at its Orion South kimberlite stands at 13%, the Saskatoon, Saskatchewan-based company said.

Star Diamond identified a 49.09-carat diamond from Star, and a 32.35-carat one from Orion South. It also recovered two diamonds that were smaller, but more valuable: An 11.96-carat stone from Star worth $11,333 per carat, and a 15.88-carat diamond from Orion South that it valued at $2,800 per carat.

“The presence of two high-value diamond groups (octahedra and type IIa) greatly strengthens the future potential-production diamond pricing from the Star and Orion South kimberlites,” the company’s senior vice president of exploration and development, George Read, said.

Shares in the company jumped almost 15% on the news, closing at 24 Canadian cents.

Type IIa diamonds are the most valued and the purest kind of diamonds. They contain either very little or no nitrogen atoms in the crystal structure. White stones are exceptionally colourless and fancy coloured ones are often found with a brown, purple, blue, or pink tone.

The post Star Diamond shares soar as study reveals ‘unusually high’ amount of high-value stones appeared first on MINING.com....

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