Yes, as strange as this sounds, Hidden Valley has made a diamond from a small service of their ranch dressing.

How do you make a diamond?

Apparently, first you heat it to 2500 degrees. Then you subject it to 400 tons of pressure for 5 months. Then you get a very nice 2 carat diamond.

They made the diamond into a ring and you can bid for it on eBay.

A diamond ring made from ranch dressing is for sale on eBay

Hidden Valley Created a ‘Ranch Diamond’ Using Actual Ranch Seasoning