Diamond News Archives

Professional economists, perhaps tired of being asked, years ago formed a committee to officially mark the beginning and end of recessions, the NBER (Nation Bureau of Economic Research) committee considers a variety of data, but its final decision is subjective.

"Don't fight the Fed"This has been gospel for investors since 2009. And the strategy has paid handsomely. Which is why it's peculiar now that the market is very clearly no longer following the Fed. The Fed is busy hiking rates & loudly proclaim that it will due 'whatever it takes' to bring inflation under control.

(IDEX Online) - North Arrow Minerals reports "encouraging" results in its search for high-value fancy yellow to orange yellow diamonds in Canada's Arctic Archipelago.

More than one in 10 of the diamonds bulk sampled last year from the Q1-4 kimberlite at the Naujaat Diamond Project are fancy color, it said.

Of those, 90 per cent are orange and 30 per cent are classified as either "intense" or "vivid" - the two highest color saturation classes and an important indicator of potential value.

Vancouver-based North Arrow recovered 99 diamonds greater than +9 DTC, weighing a total of 55.80 carats from 498 dry tonnes. The largest stones are 7.00-cts, 2.17-cts and 2.02-cts.

Ken Armstrong, president and CEO of North Arrow, said the bulk sample confirmed the presence of an important, potentially high value population of fancy orange and yellow diamonds in both the A28 and A88 units of the Q1-4 diamond deposit.

The Q1-4 kimberlite is was the largest and most diamondiferous discovered so far at Naujaat and hosts an estimated 26.1m inferred mineral resource of Type Ia - Ib fancy-colored diamonds. 

Pic courtesy North Arrow shows rough and polished orange diamonds from bulk sampling at Naujaat....

(IDEX Online) - An extremely rare type of diamond has been discovered in Australia - but it will be of more interest to geologists than the gem industry.

The "metamorphic diamonds" are invisible to the naked eye and can only be viewed with a laser and a microscope.

Researchers from James Cook University, in Queensland, found them in rocks along the Clarke River Fault, west of Paluma in the north of the state, according to Science Advances Journal.

"We had to analyse many, many thin sections of rock, and to prove the diamonds were there, it took about a year-and-a-half," said Dr Ioan Sanislav, from the university.

Metamorphic diamonds are only known to exist in six other locations in the world. In some cases they are so small they can't even be seen with a microscope.

They are formed from the massive increase in pressure and temperature when land masses collide.

Although they're of no use to the diamond industry, they may provide valuable information about the tectonic movements that formed Australia.

Pic courtesy James Cook University...