Blue Nile was the first to sell diamonds online when they were founded in 1999. Since then, Blue Nile has grown to become the world’s largest online jeweler. Blue Nile ships to 45 different countries around the world and offers payment in 23 local currencies.
Blue Nile Hong Kong(English): https://www.bluenile.com/hk/
Blue Nile Hong Kong: https://www.bluenile.com/hk/zh/