- It's always been believed that King Solomon had a diamond mine in the Congo, in a city called Zinj.
- Diamonds?

6 seconds sound clip from the Congo (1995) movie soundboard.

You can hear this line at 00:56:53.727 in the Blu-ray version of the movie.

Quote context

[...]

- I'd be safe and warm, if I was in L.A. California dreamin' on such a winter's day.

- Stopped into a church, stopped along the way, passed along the way.

- Watch out for the rocks!

- So what is this Zinj, Mr. Homolka?

- I don't know what you're talking about.

- It's always been believed that King Solomon had a diamond mine in the Congo, in a city called Zinj.

- Diamonds?

- I suppose there is no point in playing stupid.

- We shall arrive there together. We shall all be rich.

- That's fine with me, except there is no Zinj. Half the safaris that have gone in there deep looking for it never made it back. The other half came back with nothing.

- Yes, but we have a trumping card that they did not have.

- We do?

- We do.

[...]