Sapphire Stagg is the love interest of Metamorpho and his alter ego, Rex Mason from the Justice League episode, Metamorphosis.  She is the daughter of industrialist, Simon Stagg.  She first met Rex Mason through the employment at her father's company.  Their relationship is kept a secret.  She is first seen while John Stewart, the Green Lantern while Rex Mason allowed John to visit his apartment.  Simon decides to pay a visit to his daughter's apartment, and Sapphire tells her dad that she is going to go with Rex.  However, after Rex was transformed into a multicolored mutant while clearing his desk to go home, she becomes horrified at the hospital.  After Mason gained a battle with Superman, Batman, Hawkgirl and J'onn J'onzz, she calls John and tells him the latest and John reassures her and also realizes that Rex has followed his career avidly.  While Sapphire is watching the news of a huge creature defeating the Justice League, a giant monster grabs her and climbs up the side of a tall skyscraper as Rex helps the Justice League to save her.  Mason tries to rescue her, but the monster is too powerful and John rescues her before Rex sacrifices himself against the monster in order to save Sapphire and the Justice League. Sapphire was sadden about his death, fortenately, Rex survives the explosion after one of her tears fell into a puddle of the chemical and rises from the ground.  Sapphire was happy to see that Rex survived and the two hug each other for Rex's victory as John and Hawkgirl see the two happy couple hugging together. 

DC Love Interest

Lana Lang | Lois Lane | Lori Lemaris
Andrea Beaumont|Batwoman | Catwoman | Dana Tan | Dr. Chase Meridian | Jezebel Jet|Kathy Duquesne|Lorna Shore|Melanie Walker|Rachel Dawes | Silver St. Cloud|Susan Maguire|Talia Al Ghul | Vicki Vale
Batgirl | Starfire | Stephanie Brown
Wonder Woman
Alethea (Wonder Woman)|Steve Trevor
Green Lantern
Carol Ferris|Jade | Star Sapphire
The Flash
Iris West | Linda Park | Patty Spivot | Tigress
Teen Titans
Jinx|Raven|Terra|Wonder Girl
Alice (Batman: The Animated Series)|Alicia Hunt|Bekka | Big Barda | Black Canary |Cat Grant|Felicity Smoak|Grace Lamont | Hawkgirl |Joker|June Moon|Laurie Juspeczyk|Mera | Miss Martian (Young Justice)|Monsieur Mallah|Phantom Girl|Razer| Rose Wilson|Sapphire Stagg | Stella Bates| Superboy |Superwoman| Zatanna Zatara

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