18kt Rose & white gold ring with pink diamonds

I've had this ring about 10 years, I love it but haven't been wearing it much. It originally held a 1/2ct diamond, which I switched out for a sunset colored 5mm CZ. The CZ goes great with the pink in the ring, and the color shifts from pink to champagne in different lighting. The CZ is in excellent condition with no scratches or wear. The ring comes with an EGL cert stating it contains .20ct of white diamonds and .17ct pink diamonds. It is a size 5.5. Asking $300 obo.