** Miner Gemfields up 3.3 pct, highest level sinceMay and top gainer on FTSE AIM 100 index afterreporting revenue in line with its forecasts
** FY revenue $193.1 mln, up 13 pct versus last year, profitafter tax up 91 pct to $23.5 mln
** Co's FY revenue beats Panmure Gordon's expectation;broker says additional production sources in Zambia, Colombiaand Ethiopia make stock attractive
** An entire day's average volume traded by 0800 GMT
** Up to Friday's close, stock had risen 8.8 pct YTDcompared to a 10.6 pct rise in the FTSE AIM 100 index (Sanjeeban.Sarkar@thomsonreuters.com)