Gem Gossip also has the most amazing e-ring! But I much prefer her instagram. I recently joined instagram just to look a pic of bling
My favorite blogs are Gem-a-porter http://gem-a-porter.com/
and jewels du jour, which also has interesting articles as opposed to information about what new jewellery designers and the big houses are up to at the moment http://www.jewelsdujour.com/
Enjoy!