By Claudia Assis
SAN FRANCISCO (MarketWatch) -- Gold futures added nearly 1% on Monday as other assets slumped on ongoing concerns about Europe's sovereign debt crisis and a report European leaders could accept a default for Greece. Gold for August delivery GC1Q +0.80% added $12.50, or 0.8%, to $1,553.90 an ounce on the Comex division of the New York Mercantile Exchange.
