[NSFW] single element sale bedge issue

i created product showcase with sale price but as you can see in above mention URL i cant see sale bedge in home page.

see the difference :

URL 1 : https://www.rajvedgems.com/

URL 2 : https://www.rajvedgems.com/product-category/pearl-%e0%a4%ae%e0%a5%8b%e0%a4%a4%e0%a5%80/

The page I need help with: [log in to see the link]