There’s a good rundown I’ve found at the following site:

At the top, there’s a link: “HOW TO BUY A BEAUTIFUL DIAMOND AT THE LOWEST COST.” They talk about color and clarity ratings there; mainly that you don’t need to go all out if you find an excellent cut. Hopefully, that means you can keep your costs down.

This is what I found that may help you

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Diamond Color, Clarity, Carat, Cut (the 4 C’s)
Learn about the 4 C’s of diamond quality: diamond color, diamond clarity, diamond carat weight, and diamond cut. – 51k – Cached – Similar pages
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Diamond Color Clarity Grade, Diamond Grades Quality Information …
Diamond Color: Degree to which a diamond is colorless Diamond Clarity: Presence of inclusions in a diamond Diamond Carat: Weight of a diamond … – 65k – Cached – Similar pages
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Diamonds – Color, Clarity, Carat
Mar 30, 2007 … Mark Clayson, Dr. “Diamonds – Color, Clarity, Carat.” Diamonds – Color, Clarity, Carat. 30 Mar. 2007. EzineArticles.com. …
ezinearticles.com/?Diamonds—Color,-Clarity,-Carat&id=509308 – 46k – Cached – Similar pages

Try Zales or Kay because they’re in you price range or go to a local jewelry store and don’t say the price you are willing to spend just that u want advice on color, clarity, carat. But if you want my opinion always go with silver when having a diamond combination cause it looks better not gold.