Go to your Instagram page and click on the image you'd like to embed.
Navigate to the address bar and copy the first part of the page URL.
Go to the site editor and click 'Insert' from the main toolbar.
On the left sidebar, click Basic Objects > click 'Widget Library' > 'Apps' > Click 'Instagram Image' > 'Use this'.
The widget will appear on the page. Double click on it to bring up the editing window.
Paste the copied URL into the box and click 'Apply'.
View the embedded image by clicking 'View my site' in the top right corner.