A mid 20th century pink sapphire and diamond ring, by Hardy Brothers, the cushion-shaped pink sapphire, weighing 3.67 carats, flanked by brilliant-cut diamond trefoil shoulders, to the plain hoop, signed Hardy Bros. (indistinct) mounted in 18 carat white gold and platinum. Accompanied by a report from the Gem Studies Laboratory (GSL), Australia, stating that the pink sapphire is of Burmese origin, with no indication of heat treatment. Report number AA51522, dated April 28th 2013