Step #1 - Copy the Embed code
After you publish the item, click the "Embed & Share" button. In the popup screen, click the Shopify tab, and click the "Copy code" button.
Step #2 - Open a Page on your Shopify Site
Either use an existing page or open a new page for adding the item.
Step #3 - Add the item to your page
In the editor of the page, click on the ‘<>’ icon. In the HTML editor that opens paste the item code you copied in step 1 and click save/create page.
Preview the page to see how the item looks on the page you created and make changes to your page accordingly.