All the Details on Mary-Kate Olsen’s Engagement Ring

at 2:00 pm | By

The Olsen Twins
Take a look at the sisters through the years.
You’re probably heard that Mary-Kate Olsenis now engaged to Olivier Sarkozy, and she is not sporting a very, very large ring on THAT finger.

According to the sleuths at Stylecaster, Olsen’s engagement ring is a vintage Cartier (so Mary-Kate), purchased at a Sotheby’s jewelry auction in NYC on February 6.

The center European-cut diamond clocks in at approximately four carats framed by 16 sapphires, and the petals are set with single-cut diamonds.

The circa 1953 ring was originally owned by a Tennessee jewelry collector and was estimated to go for between $40,000 and $60,000 at the auction. It was ultimately purchased for $81,250.

That’s a relatively small sum in comparison to Kim Kardashian‘s engagement ring from Kanye West, for instance, is a perfect, D flawless cushion-cut diamond ring created by Lorraine Schwartz that’s estimated to be worth upwards of $8 million.

Launch the gallery to see more pics of Mary-Kate Olsen attending the Louis Vuitton show as part of the Paris Fashion Week Ready To Wear Autumn/Winter 2014 in Paris, France on March 4, 2014.