BUZZ-Randgold: Lone FTSE-100 gainer as gold rises
** Gold (Other OTC: GDCWF - news) miner's shares up 0.6 pct, the only riser on London's bluechip FTSE 100 index, as the devaluation of the yuan supports gold prices
** Gold gained for 5th session in a row on Wednesday to trade near a three-week high, benefiting from safe-haven demand
** Stock one of only two risers on FTSE 350 mining index , which are hurt by a fall in copper, aluminum, nickel and silver
** Smaller peer Centamin (Toronto: CEE.TO - news) also up 1.7 pct as it reports results
** Centamin is "...set to exceed our expectations as management suggest beating guidance" Investec (LSE: INVP.L - news) analysts say
** A quarter of both stocks' daily avg volumes have gone through in the first 40 mins of trade (venkateshasoumithri.mamidipudi.thomsonreuters.com@reuters.net)