VIDEO : Key Plot Point In Ocean's 8 Not Possible

In Ocean's 8, Sandra Bullock's heist team plans to steal a Cartier necklace.
How do they pull it off?
They use a 3D printer to create a fake one.
The fake they create is so real it fools everyone.
But, is it possible to make a fake Cartier necklace with a 3D printer?
Refinery 29 investigated and, according to them, the answer is 'No.'
---The closest thing doable via 3D printing now would be the creation of a forgery, which could be printed via a transparent red resin or a plastic.---
Greg Kress, the CEO of Shapeways
Via Refinery 29.