Grid Widget
You can choose the size and segment (such as all vendors, mid-market, enterprise, etc.)
It looks like this in G2
Star Rating Widget
The stars in this graphic are a live representation of your G2 user rating.
Review Spotlight Widget
Using a 3 column paragraph, with 2 reviews in each column.
You manually choose the reviews you want here. Length of review
matters, as you'll want to stagger with a shorter and longer one in each column.
It looks like this in G2
Each "review spotlight" is a single review. Background and font colors can be customized in G2. 
Review Snapshot Widget
You can choose multiple reviews that can be toggled in one tile.
Does not play well with others. Here's how it looks when embedded.
It won't load on this page because there are other widgets on the page.
It would look like this:
It looks like this in G2
By modifying the embed code, you can change the link text, iframe height, width, borders, link text size, and more.
You can only embed one of these per page. If you embed more than 1, only the first will show.
Testimonials Widget
Not Recommended
Select 1 or multiple reviews to embed on your site. Here's an example of a testimonial with 2 reviews.
Sizing of the iframe can get tough. You need to modify the width and height in the embed code from 100% to the amount of pixels needed. In this example, I chose 700px and it's still cut off a bit. Mobile sizing could look off as well.
Adding G2 Reviews Using Our Testimonial Paragraph Type - Static Text
This is not an embed.
Create a testimonial content type for each. No images or special text formatting is allowed. Will show link the below.
Documentation
To build G2 widgets, log in to the G2 account and navigate to your product.
Then Marketing Content > Widgets.
Widget Documentation can be found here.
