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by Will Purcell

The diamond and specialty minerals stocks box score on Friday was an upbeat 99-63-148 as the TSX Venture Exchange rose seven points to 593. How long will this go on is the question on the minds of diamond miners, investors and analysts, as once again, New York-based analyst, Paul Zimnisky, set his global rough diamond price index lower this week.

Last week the index stood at 140.8 points, although once tardy information had been accounted for, he subsequently nudged it lower, to 140.4 points. Now, with most of this week's pricing data now in, Mr. Zimnisky has set his index at 140.2 points, down nearly 0.5 per cent from where we thought it was a week ago.

Indeed, one must go back to early March to see an uptick on Mr. Zimnisky's chart -- a minor molehill in a three-month flattish stretch that ran from mid-January through mid-April during the traditional restocking period for jewellery retailers, wholesalers and manufacturers, all of which must replenish stocks after the major holiday buying season.

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