A metal-detecting enthusiast has unearthed a 2,000-year-old treasure hoard worth an estimated £1 million in a field near Stirling.

The amateur hunter, who has not been identified, found four gold neckbands dating to the Iron Age.

He informed Scotland's Treasure Trove Unit which sent a team to excavate the site, the Daily Record newspaper reported. The bands, or "torcs", made from twisted gold, are thought to date from the 1st and 3rd century BC.

A similar one found in Newark, Nottinghamshire, in 2005 sold for £350,000. The Scottish Archaeological Finds Allocation Panel will now value the latest discovery. A spokesman for the National Museums of Scotland said: "There has been a significant find."

Under Scots law, the Crown can claim any archaeological objects found in Scotland.

Finders have no ownership rights and must report any objects to the Treasure Trove Unit. But the man may receive a reward equal to the value of the jewellery. Historian Fiona Watson told BBC Radio Scotland: "It belongs to the Crown and the Crown, at Her Majesty's discretion, can pay money over to the finder to the market value.

"I'm sure that is what will happen. The key question then is what will happen to this remarkable find. Where will it go?"

Metal detector Terry Herbert unearthed the largest hoard of Anglo-Saxon gold ever found in a Staffordshire field in July.

The haul of about 1,000 items was officially declared to be treasure by a coroner.

Thousands of people queued to see the gold when it went on show in Birmingham earlier this year. It is being valued in London.