Sad story on Yahoo! News:
Honey, will you marry… Oh. Never mind…
“It is the one moment every man wants to get right — and which London floor-fitter Lefkos Hajji could hardly have got more wrong.
The luckless 28 year-old’s dreams of giving his sweetheart, Leanne, 26, the ultimate proposal have literally vanished into thin air.
Hajji, of Hackney, east London, had concealed a $12,000 engagement ring inside a helium balloon. The idea was that she would pop the balloon as he popped the question.
But as he left the shop, a gust of wind pulled the balloon from his hand and he watched the ring — and quite possibly the affections of his girlfriend — sailing away over the rooftops.
“I couldn’t believe it,” he told The Sun newspaper.
“I just watched as it went further and further into the air.
“I felt like such a plonker. It cost a fortune and I knew my girlfriend would kill me.”
Hajji spent two hours in his car trying to chase and find the balloon, without success.
“I thought I would give Leanne a pin so I could literally pop the question,” he said.
“But I had to tell her the story — she went absolutely mad. Now she is refusing to speak to me until I get her a new ring.”
He is hoping the ring will still turn up.
“It would be amazing if someone found it,” he added.
(Reporting by Peter Apps. Editing by Steve Addison)”
Take home message? While it’s romantic to put an engagement ring in a unique place as a surprise for your girl, it won’t be romantic if the ring gets lost. Nothing wrong with using a CZ in a setting as a temporary ring, even if you have to attach a sticker saying this ring is redeemable with a real diamond upon saying yes. Use your imagination, but be smart 
