There is personalized jewelry and then there is Gigi Hadid's personalized jewelry.

As Hadid's gift to Taylor Swift this week proves, the second category is on another level. On Monday, June 24, London-based designer Cece Jewellery created a custom signet ring for Swift that mentions all of her favorite things, starting with her cat, Benjamin Button, and ending with her boyfriend, Travis Kells, as Hadid She shared on Instagram that she commissioned it.

The gold signet ring may be the most Taylor Swift-coded piece of jewelry in existence. On the surface is a portrait of Swift's cat surrounded by a ring of pearls and two small stars made of pave diamonds. On either side of the ring's outer band are flaming hearts surrounded by more diamonds, one heart with 87 (Travis Kelce's Kansas City Chiefs number) in the center and 13 (Taylor's lucky number) on the other. Inside the band are the initials of Swift's album "The Tortured Poets Department" in a swirling font.

"What an honor to create something so special for Taylor Swift," owner Cecilia Fine-Hughes wrote on Instagram. 'This ring is designed to keep her favorite things close. It's great to see her shine on stage in London and we are keeping an eye out to see her wearing this ring soon."

Hadid confirmed that she was responsible for her "best friend," commenting. 'Perfect,' she replied below the photo. 'Thank you. Fine-Hughes added, "Thank you for being the best friend a girl can have and choosing this piece for Taylor!" She replied. (She's not wrong!)

Swift has yet to wear her signet ring, but made a few adjustments to her onstage jewelry while in the UK.

The "Fornight" singer does not always wear jewelry on stage. Instead, she coordinates certain items with certain looks. For example, she wears a Versace chain necklace only with a coordinated bodysuit and a lover's outfit. According to the product description by the brand, this dainty piece is just as important as Hadid's gift. The description reads, "The Double T from the Tiffany T Collection is a tangible reminder of the connection we feel but don't always see."

Nothing in Swift's wardrobe is too small for fans to notice. From her outfits for the Eras tour by Alberta Ferretti and Roberto Cavalli to her daily street style, she meticulously plans outfits based on the album's aesthetic, sometimes dropping hints for fans to decipher. Swiffies have been over Taylor Swift's watch choker necklace, which she last wore on stage at the Grammy Awards to start "The Tortured Poets Department" era and is believed to be a hint of a countdown to new music!

"The Tortured Poets Department" was the last to wear it on stage at the Grammy Awards.

Hadid's timing for revealing this gift could not have been more perfect. Swift had just sold out three shows at London's Wembley Arena and closed out the last of them with a cameo appearance by Travis Kells. Afterward, the two partied in the city with their inner circle: Swift in a crocheted dress and Gucci heels, Kelsey in a matching knit.

When Swift returns to London for five more shows in August, she will have the most personal souvenir from her first trip. Where will she get a friend like Gigi Hadid?