Google is now displaying rich snippets via product schema markup in the Google Image Search results. By doing an image searc on a smartphone on Google, and you click on a result that is product related, it could end up showing the rich snippet.
Check out the following images I captured in the image search result after clicking on the image to display the larger photo:
Also, Google has even updated the product schema developer documents to add that they are now supporting image search results. The image search mentioned in this text was not there a few days ago:
Add markup to your product pages so Google can provide detailed product information in rich Search results — including Image Search. Users can see price, availability, and review ratings right on Search results.
Using markup to enable rich product results lets you attract potential buyers while they are searching for items to buy on Google or images that include products you sell. Maintain the accuracy and freshness of your product information, so your customers find the relevant, current items they’re looking for.
Aaron Bradley was the first to spot this, and he said that this is a “fairly significant” change to the product schema.
Here are more screen shots of product rich snippets showing in the image search results, one with reviews and one without: