I have implemented Schema.org (using Microdata) inside my product pages and when I check Google Webmaster Tools it is crawled by Googlebot and interpreted successfully. The point is I have not implemented some properties inside
Product type like
I need to know whether there is some subset of all product attributes should be implemented essentially?
And the second question is how much it takes for Google to show product rating and price as rich snippet inside search results?
Best How To :
There are no mandatory properties/types in Schema.org.
However, consumers of the data, like Google Search, might have rules under which conditions they will make something with your data (e.g., they are looking for specific properties). So you’d have to check their documentation.
For Google Search, their Rich Snippets are documented at https://developers.google.com/structured-data/rich-snippets/. The Products Rich Snippets lists the required and optional properties/types. As you can see, the
brand property is not required by Google for showing their Rich Snippet in the search results.