Laura Jacques and Richard Remde, devastated by the death of their eight-year-old boxer 'Dylan', spent a whopping 67,000 pounds to clone their dead pet at a South Korean lab.
The couple celebrated as Chance was delivered by caesarian section at Sooam Biotech Research Foundation.
In the first case of its kind, the puppy was cloned from Dylan, almost two weeks after it died. The previous limit for dog cloning was five days after death, The Guardian reported.
The couple announced the birth of Chance by uploading an adorable clip on a twitter page they made for Dylan.
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The pooch is feeding well from its mother as Laura, 29, said how she "lost all sense of time" during the operation.
Her husband, Richard, 43, said, "Even as a puppy of just a few minutes old, I can't believe how much he looks like Dylan.
"All the colourings and patterns on his body are in exactly the same places as Dylan had them."
But the delighted couple still have another belated Christmas present to look forward to - a second clone named Shadow is set to arrive on Tuesday - costing another 67,000 pounds to the couple.
Dylan's death had left Jacques bereft. "I had had Dylan since he was a puppy," she told The Sun. "I mothered him so much, he was my baby, my child, my entire world," she said.
Laura contacted Sooam after hearing how another Brit Rebecca Smith, had her dachshund Winnie cloned for a TV show last year.
Laura had placed Dylan's body in the freezer - contrary to advice from scientists - before embarking on the process.
The devoted owners, who extracted DNA themselves, were then forced to fly the cells to South Korea twice because the first cloning attempt failed.
The first pregnancy was verified on November 23, and the second was confirmed a day later.
Laura and Richard hope to adopt the puppies' two surrogate mums and bring all four dogs home next July - after a seven-month quarantine period.
Chance and Shadow - are the first British dogs to be reproduced following the birth of Mini Winnie in March 2014.
Dogs were first cloned in South Korea in 2005 by Sooam Biotech scientist Dr Woo Suk Hwang.