Instagram adds the ability to embed an Instagram photo on a website, like here on Tumblr. Open the image on the web client, and the share button leads to the embed code.
I had to do some pixel math because the default width of the embed was too large – 612px – for my theme. so this
was edited to be this
because my main column is 500px not 612px, and the height had to be scaled appropriately: 500/612*710 = 580.065 ~= 580.