Taylor Swift and Travis Kelce are getting married , which means Swift is rocking an engagement ring -- and an impressive one at that.

"Your English teacher and your gym teacher are getting married ," Swift and Kelce wrote in a joint Instagram post on Aug. 26, announcing their engagement.

The five photos the couple shared alongside their announcement included an up-close photo of the "Love Story" singer's diamond ring.

ABC News has confirmed that Swift's engagement ring is an old-mine brilliant cut diamond designed by Kindred Lubeck of Artifex Fine Jewelry in New York City.

Lubeck is a goldsmith, hand engraver and vintage jewelry collector, according to her bio on Artifex Fine Jewelry's website.

On the designer's Instagram page , Lubeck describes herself as making "hand-engraved

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