The iPhone 6 dummy in Gold comes with a complete gold accent around the Touch ID home button and around the body. These dummies come in Space Gray, Gold and Silver like the iPhone 5S and look to carry a metal uni-body.
The iPhone 6 was also Leaked by macitynet comparing it to the iPod 5. As you can see, they look a lot similar. They are both very slim, and has that curavacious profile in the body. The speaker holes and volume buttons also look strikingly similar.