Color change in photoshop without loosing luminosity? Urgent :-(?

Question

Hi, I really appreciate if somebody can answer this question:
I have a diamond image, which obviously has different shades in it, it actually has dark, like dak brown shades, which i want to change to lighter smth like light yellow, i tried replace color, hue/sat//light but the effect is not realistic like an actual diamond looks, it is loosing its luminosity. i even tried with magic wand tool, by selecting each darker part and changing color, but it does'nt look realistic either. I would be very grately if somebody could help me with this. I m using Photoshop 7.0
Thank You in advance.

Answer 1

1) Select the area you want to change. Don't do the whole diamond in one go but a facet at a time.
2) Change hue and saturation to the color you want. Make each facet a different color. Not like red and blue but you may want one facet to be a pink to offset the yellow on the facet next to it.
3) Reset a combination of contrast and lightness to your liking. Usually this means cranking up the contrast and compensating by 'dimming the light' a bit.
4) Overlay a new layer and use your spay-paint to highlight area's. Bring to whole highlighted layer to 50- 70% transoerancy.
This also works the other way around to bring some subtle shading back to your diamond. Use a dark but bright blue.

Answer 2

you get contacts if you want to change the color of your eyes. even though you can change the color of your eyes in a picture everyone already knows your natural eye color so either way it doesnt even matter. there are contacts that are not meant for the sight but for the color or if u have glasses you can get some that are meant for both.