Gold prices treaded water on Wednesday, with lower U.S. Treasury yields lending support, as bullion's struggle to break out of its range-bound trade continued.

Spot gold was up 0.1% at $1,821.57 per ounce by 0254 GMT. U.S. gold futures firmed 0.1% at $1,823.10.

Helping the appeal of non-yielding bullion, benchmark U.S. 10-year Treasury yields eased on Wednesday after three straight sessions of gains.

U.S. Federal Reserve policymakers promised further rapid interest-rate hikes to bring down high inflation on Tuesday, but pushed back against growing fears among investors and economists that sharply higher borrowing costs will trigger a steep downturn.

"Overall, the outlook for interest rates means that when we do get a break out of this trading zone we've been stuck in now for a couple of months, it's more likely to be to the downside," said Michael McCarthy, chief strategy officer at Tiger Brokers, Australia.

Although gold is seen as an inflation hedge, higher short-term U.S. interest rates and bond yields raise the opportunity cost of holding bullion, which yields no interest.

"Rising interest rates and a stronger U.S. dollar are acting against inflation-hedging forces. So we've got balance in the gold market at the moment," McCarthy said, adding that it is very hard to get excited about the prospects for gold, with so many other markets showing higher volatility.

A stronger U.S. dollar makes gold less attractive for buyers holding other currencies.

The United States banned new imports of Russian gold, acting on commitments made by the Group of Seven leaders this week to further punish Russia over its invasion of Ukraine.

The move, however, is being seen as symbolic, as gold exports from Russia to the West have already dried up.

Spot silver was flat at $20.84 per ounce, while platinum rose 0.5% to $914.64 and palladium gained 2% to $1,910.43.

(Reporting by Bharat Govind Gautam in Bengaluru; Editing by Rashmi Aich and Amy Caren Daniel)