On Aug. 16, the couple announced the news on Instagram with a series of photos, including close-up shots of Serratos' dazzling ring from celeb-loved luxury jewelry brand Brilliant Earth.

Celebrity engagement rings continue to fascinate fans by the sheer size and cost of these tokens of love. But who's worn the most expensive?

Also, check out the most expensive pieces of jewelry. Earning passive income doesn't need to be difficult. You can start this week. The Graff Pink, a 24.78-carat fancy intense pink diamond ...

An 'extremely rare' pink diamond ... for our vendor." The diamond, which was sold by a private vendor from North Yorkshire, ...

To get a closer look, we visited the jewelry company Suna Bros of ... especially when they could use brighter pink, blue, or yellow diamonds. Instead, brown diamonds were used as tools to drill ...

A rare pink diamond has sold for HK$453.2 million (US$57.7 million) in Hong Kong, setting a record for price per carat paid at auction for any diamond or gemstone, according to Sotheby’s auction ...