** Shares of Australian diamond miner and explorer Lucapa
Diamond LOM.AX rise as much as 9.1% to A$0.036, marking its
biggest intraday pct gain since Oct. 5
** Co says seven Lulo diamonds totalling 535 carats sold for
A$24.5 mln ($15.5 mln)
** Adds tender attracted average price per carat of
US$29,401
** Says result reinforces robust demand and prices for
large, high-quality diamonds
** Nearly 777,156 shares change hands as of 0312 GMT, vs the
30-day average volume of 352,210 shares
** Stock down 28.3% YTD as of last close
($1 = 1.5810 Australian dollars)
(Reporting by Roshan Thomas in Bengaluru)
((Roshan.Thomas@thomsonreuters.com;))