Come with me. Let me show you a positive test for diamonds.
10 seconds sound clip from the The Grifters movie soundboard.
You can hear this line at 00:08:14 in the Blu-ray version of the movie.
Quote context
[...]
- You are a valued customer, as you know.
- I can't understand this. It's something you almost never see.
- What is?
- This is some of the finest filegree platinum I've ever seen.
- But the stones... no. They're not diamonds.
- But they must be! They cut glass!
- Glass will cut glass. Almost anything will.
- Come with me. Let me show you a positive test for diamonds.
- It clings to the surface in tiny droplets.
- I hope you're not too badly disappointed with us.
- Well, I have only one thing now. Are you interested?
[...]