Shortly after Ethan's initial announcement, the beaming mama shared a truly heartwarming snapshot of the couple with their beautiful newborn -- and revealed her lovely name and the bundle of joy's date of birth:
Scarlett's doting dad also added a darling Instagram photograph of the father-daughter duo stealing a special solo moment:
"She melts my Diamond heart like a warm December morning melts the fresh winter snow," he eloquently captioned the image. "Scarlett Avery Diamond will be with us for Christmas and forever more. Thank you Amber for being simply extraordinary."
The fairy tale began for E and A nearly one year ago when they first embarked on the journey of a lifetime and went to Hawaii to compete on MTV's then-brand-new dating show. Their attraction was immediate -- look no further than this collection of aww-worthy moments they shared in paradise -- and the pair didn't need the Truth Booth to confirm that they were compatible.
Ultimately, they were indeed declared a perfect match, and Season 1 ended in grand fashion: The outdoorsy guy dropped to one knee during the reunion special and asked for the beautiful Texas native's hand in marriage. Amber gleefully accepted, and not long after, they learned they would soon be a family of three.
A baby shower/"AYTO" reunion -- complete with a touching gender reveal -- followed, along with an intimate wedding ceremony. Now the lovebirds are officially plus one -- just before Christmas! -- and this lucky peanut has a whole bunch of fun-loving aunts and uncles -- namely, Adam, Ashleigh, Brittany, Dre, Coleysia, Chris T., Dillan, Jacy, JJ, Jessica, Joey, Kayla, Ryan, Paige, Scali, Shanley, Simone and Wes!
Be sure to offer your well wishes to the Diamond family -- and relive their unforgettable "AYTO" baby bash!