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by Will Purcell

The diamond and specialty minerals stocks box score on Friday was a mediocre 65-86-151 as the TSX Venture Exchange fell four points to 724. Another week has passed without a major move or readjustment to Paul Zimnisky's global rough diamond price index. That is fortunate, since all the big changes to the recent weeks of the chart have ranged from perplexing to terrible. If one stands back and takes the wider view -- preferably through those handy-dandy rose coloured glasses -- there has been a slow increase in rough diamond prices since Mr. Zimnisky drew the last of his horizontal dashed lines of defence on his chart seven months ago.

No, your eyes are not deceiving you as you glare at the squiggles and jiggles: The index, currently sitting at 127.3 points, is a full percentage point higher than six months ago. Mind you, much of the gain arguably came in the past week, when the latest jiggle added 0.4 point to last week's fix, which Mr. Zimnisky also squiggled 0.5 point higher based on late-to-arrive information.

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