From the article:

The Princess also met the local jewellers who designed the brooch she wore for the occasion.

James Porter & Son, established in 1858, is based in Glasgow's historic Argyll Arcade and is one of Scotland's oldest jewellers.

Simon Porter said they had been asked to design a brooch based on HMS Glasgow's crest.

'It was an absolute honour to see her wearing it,' he said. 'Against a plain navy background it really stood out.'

The brooch was funded by two London livery companies, the Worshipful Company of Fan Makers and the Worshipful Company of Merchant Taylors.

Not a historic piece, yet, but it's beautiful. I'm sure the jewelers were proud for it to have been worn by Catherine on the ship christening day.

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