By Shane Lasley
Q1-4 yellow diamonds in rare class
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Last updated 4/26/2015 at Noon
North Arrow Minerals Inc. April 21 reported that yellow diamonds recovered from the Q1-4 kimberlite at the Qilalugaq Project in Nunavut contain un-aggregated nitrogen, a defining characteristic of rare Type Ib diamonds with fancy "Canary Yellow" colors.
Type Ib diamonds are exceptionally rare.
"In fact, less than 1 percent of more than 24,000 fancy yellow diamonds investigated by the Gemologi...
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