Jennifer Garner dropped a diamond ring given to her by husband Ben Affleck down a drain.The 'Catch and Release' star was given the expensive rock by her husband after she gave birth to their one-year-old daughter Violet, but almost lost it when it accidentally fell off. In an interview on US TV show 'Live With Regis and Kelly', Jennifer said:"He gave me this beautiful diamond ring and I was playing with it and it fell off. It fell under this ice maker in the house - Ben hasn't even heard of this yet - and it fell into the drain under this ice maker."The plumber had to come and dismantle the thing from under the house. And he found it. Ben doesn't even know about this! I should have warned him."The 34-year-old actress got the ring back without her husband knowing how it was almost lost, as she was flashing the sparkler at the premiere of her new film 'Catch and Release' with Kevin Smith. Ben, also 34, and Jennifer were married in June 2005.