Petra Diamonds Ltd (PDL.L)
29 May 2015
** Petra Diamonds Ltd's shares fall as much as 12 pct, after diamond miner warns that full-year results will be below market consensus due to variability in grade and production mix
* Shares fall as much as 9 pct (Adds analyst comment, background, updates shares)
Jan 26 - Petra Diamonds Ltd said on Monday it expected full-year results below analysts' average forecast, citing softness in the diamond market.