Hmm... I think you should probably have taken into account that the parents of the babies on the list are from all different backgrounds (in both ethnic and religious senses) before you posted this. I posted about a bunch of names from the Scottish Forenames 2008 list but I left out the ones with what you could call strange spellings (unless they were really obviously meant to be a 'unique' spelling) because of this reason. Other than that...
'I want to name my daughter after expensive jewellery even though I live on a council estate and all my jewellery comes from Argos: '
I very much doubt someone matching this description would call their child
Opal or
Sapphire, I think they're quite high class names...