Color of diamond and metal

[LikeDeIce]

So I have heard two contrasting theories about low-color diamonds (for example, I or J)

Theory 1: The diamond "takes on" the color of the band in which it is set. In other words, place the diamond in a platinum or white gold setting, and it will face up whiter than putting it in a yellow gold setting

Theory 2: Use contrast to your advantage. Place the diamond in a yellow gold setting and it will seem quite white by comparison to the gold. Place the same diamond in a white gold/platinum setting and it will appear more yellow in comparison to the white metal around it.

Which theory do you guys agree with more? Thanks!

 

[The Mole]

Theory 2.

Diamonds are graded for color on a white background. Setting the diamond in a silver color ring (white gold or platinum) will enhance your ability to see the color.

Hmmm...if anyone believes theory one, I would hope they do not set their diamond in white gold as their diamond will increase in yellow color over time as the Rhodium platinum comes off...