Blue Nile is an online specialty retailer of fine jewelry. Blue Nile was founded in and today is the largest online retailer of diamonds. Blue Nile is based in Revenue : US$ million (). Note: This review of Blue Nile has been updated to include my personal experience of buying a 1 carat halo engagement ring from them. To find out more details. Blue Nile is a major player in the online diamond business and in fact it was even the first one to start selling diamonds online! It has been around ever since. Go to a local jeweller who you can trust. Retrieved 21 March That is no surprise considering that Blue Nile is offering altogether around For Business Open Menu Close Menu Apple and Business Shop for Business. If you are smart, heed this warning and stay far away from BlueNile.