Roses are blooming!

The most exciting thing ever! A stunning lot of almost 3.5cts of natural fancy color rose cut diamonds! Oooh! Oooh! Soon to be in my possession! Even at this moment, winging their way towards me. I can't wait to get them. I have been wanting to use this sort of stone for ages now, ever since I first saw them. And I finally found a Kimberly Process compliant supplier. Exciting! I have a ring carved in wax now, just waiting to be cast in 18kt yellow, one rose cut center stone, 8-10 white brilliant cut diamonds surrounding it. Can't wait until it is finished.

Question: What color of center stone should I use in the first ring of this style?