Priscilla Chan's wedding ring may have cost $25,000 according to estimates from a jewelry expert who saw a photograph of the ring.

Chan was photographed with the ring at a restaurant in Palo Alto, California Wednesday.

A jewelery expert, Tristan Cole, told the Daily Mail that the "ruby could go for $8-10,000 alone" and what seemed diamonds on the side could increase the price to $25,000.

"Zuckerberg is stingy! A billionaire and doesn't even buy a decent engagement ring," jeweler Gandhi Enterprises wrote on Twitter.

The tag price speculation has sparked similar reactions on Twitter and other forums in which some people claim they expected Zuckerberg to give an expensive diamond ring to his wife. (See a Picture of the Ring Here)

"I thought Jessica Simpson's ruby engagement ring was cheap & tacky, but this is worse," Twitter user @dontbiteme wrote.

"Mark zuckerberg gave his wife a $25,000 wedding ring......he's worth 19 billion...." another Twitter user @RealStephofNYC wrote.

"I'm sorry, but she was robbed. its not even a big Ruby," user @morg813 wrote on Twitter.

According to an Associated Press report, Zuckerberg designed the "simple ruby" ring himself.

After all, Zuckerberg may have chosen a rubi for a reason when he married his Chinese-American longtime girlfriend.

Rubis have always been held in high esteem in Asian countries. They were used to ornament armor, scabbards, and harnesses of noblemen in India and China.

Rubies were laid beneath the foundation of buildings to secure good fortune to the structure.

Rubies are often associated with love and passion but the stone is also a symbol of "knowledge."

Zuckerberg reportedly gave the ring to Chan on their wedding day last Friday. The party was a low-key event at Zuckerberg's backyard and guests ate dinner from the couple's favorite restaurants.

Media outlets are also reporting that the meals served at the wedding cost less than $8 each.