have splashed out over $1.5 million on their daughter, Blue Ivy, already.
The superstar parents have lavished gifts on their newborn - who was delivered in New York last Saturday night (07.01.12) - including a $600,000 rocking horse, a $15,000 high chair and a $30,000 playhouse.
A source said: 'They're really pulling out all the stops - the two of them have been spending like there's no tomorrow! Together they've bought a Swarovski-studded high chair by Carla Monchen for $15,000, and a Fantasy 'posh tots' coach carriage crib for $22,000.
'Jay-Z bought Beyonce a solid gold handmade Ginza Tanaka rocking horse for $600,000. They've even
splashed out on a $30,000 magical windmill playhouse for the garden and a mini Bugatti car, too.'
The couple have also spent around $350,000 ensuring the nurseries in their three homes are identical and are rumoured to have paid over $800,000 to rent an entire floor of the Lenox Hill Hospital for the birth - have also spent thousands of dollars on Blue's wardrobe.
The source added to Britain's Star magazine: 'They've bought a wardrobe packed with thousands of pounds' worth of one-off designer baby clothes. She's going to be the most fashionable baby around and will be giving Harper Beckham a run for her money in the style stakes.
'Plus they've got baby charm bracelets, gold and platinum diamond rattles and dummies from Tiffany & Co, too.'
Beyonce and Jay-Z's famous friends have also been splashing out on the baby, with Kelly Rowland
said to have spent around $5,000 on a baby bath
studded with 44,928 Swarovski