Ether is available at various exchanges for buying and selling. The current market cap of Ethereum is $67,765,787,333 USD at the time of writing (March, 2018), and an Ether is worth approximately $690.29 USD.
The following chart shows the historical market capitalization details:
Ether can either be purchased on various online exchanges, or it can be mined. There are online services available, such as https://shapeshift.io, that allow conversion from one currency to another.
Various online exchanges, such as Kraken, coinbase, and many more, offer Ether to be ...