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by Will Purcell

The diamond and specialty minerals stocks box score on Friday was a mediocre 76-87-147 as the TSX Venture Exchange lost one point to 614. And it's back! The horizontal dashed line depicting a flattish period on Paul Zimnisky's global rough diamond price index has returned after a three-week absence. The line, the latest in a series of metaphorical trenches of defence over the past three years, appeared in late January along the 147-point mark, only to go poof after Mr. Zimnisky had to redraw his chart lower thanks to some gloomy late-to-arrive data. Yes, the new trench, hastily dug along the 144-point mark, marks a retreat, but at least the retreat has been stabilized for now.

The new stability is the result of a second week of rough diamond price increases. Mr. Zimnisky first added 0.5 point to last week's fix to account for tardy data, and then he added 0.4 point this week to put the index at 124.7 points, 0.9 point higher than we thought it was a week earlier. And so, the chart now has rough diamond prices up 0.3 per cent over the past month.

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