A member of Tonga's 2011 Rugby World Cup squad, he's no stranger to the European club game, having enjoyed a spell with Stade Francais.
He then spent time playing in Japan before representing the Wellington Lions in New Zealand's ITM Cup.
Gloucester's Director of Rugby Nigel Davies explained today why it was important to add another second row to the squad.
"We've effectively been a man down since Alex Brown injured his shoulder in the opening game of the season. Jim Hamilton and Will James have been superb, and Tom Savage has done a great job there when required.
"But, with Elliott Stooke also currently injured, we did need to being someone else in. Another injury would have left us seriously stretched.
"We've taken our time and made sure that we're bringing in someone who will add to what we already have, on and off the field.
"Lua brings a big physical presence and international experience to the table and we're delighted to welcome him on board."