Happy 30th birthday, Prince William - CNN (blog)

Prince William is celebrating his 30th birthday on Thursday with a reportedly "low-key" and "private" soiree … oh, and a $15 million inheritance.

Prince William: 30 years in photos

So what's a prince to do with such a generous chunk of change? We'd suggest planning a lavish vow renewal, but it might be too soon. Here are some other options:

• Sixteen sapphire and diamond encrusted dog collars for Lupo
  What cocker spaniel wouldn't want to wear an 8.5-carat sapphire around its neck? Plus, the $899,000 collar would look great next to Kate's matching rock.

• The world's most expensive cocktail dress
  A total of 100 3-carat round diamonds cover this $15 million Chloe & Reese cocktail gown. Though, we're not sure it's the prince's style.

• Two garages with hydraulic elevators
  This $6 million garage, which was featured on HGTV's "Million Dollar Rooms," would probably be a great addition to Kensington Palace.

• 1,153,846 Will and Kate iPhone cases
  At just $13 a pop, these cases should take Will through the next 30 years.