Then there's Bling Strings, Muru's rhinestone-studded bra straps - also using a nickel-free base metal.
Recent increases in the price of white gold and platinum have priced some consumers right out of the market, and jewellers scrambling for alternatives are filling the gap with palladium.
"The Palladium Alliance International, the industry proponent of the white metal, estimates that more than 25 jewellery companies have begun using palladium in the fine fashion jewellery category, in addition to bridal," US magazine Modern Jeweler reported in a recent issue.
Still, Barry Sadlier, head metallurgist at Sydney custom casting service Palloys, says more consumer education is needed before the trend is fully felt here: "Palladium certainly got a mention when gold or platinum prices went up and people were looking for an alternative. But, unless there's a marketing exercise done by the retail trade, consumers don't understand.
"Palladium is a lot lighter," Sadlier adds, "and, for consumers, the thinking is 'If it's heavy, it must be good', as is the case for platinum."