Instead, a simple band studded with black diamonds or black jade, worn on the right hand's ring finger, can add some oomph to a suit while still being appropriate, he says.

WSJ: Ways to Make a Manly Statement With Jewelry

Roxanne takes a second black velvet-lined box out, one containing several pieces of translucent jade of different shapes, colours and sizes.

BBC: How to buy jade in Asia

Jade Spence, in whose flat the fire started, recalled seeing "thick black smoke" and a part of her room on fire.

BBC: The fire at Lakanal House in Camberwell in July 2009

Earlier on Friday hundreds of people attended Jade's funeral at Bournemouth Crematorium, many wearing her favourite colours of pink and black.

BBC: Jade Clark's funeral at Bournemouth Crematorium