: A superior cut can actually make a smaller diamond appear larger than its carat weight suggests because of its increased brilliance.

: Most buyers seek a "white" or colorless appearance. For the best value, consider G or H grades (near colorless) from sites like Blue Nile ; these often look identical to higher, more expensive D-F grades once set in jewelry.

Once the cut is secured, the remaining factors help you tailor the diamond to your budget and style.

Beyond the stone itself, the "story" of a safe purchase includes two final essentials:

The story of a diamond's beauty begins with its cut. While many focus on (weight), a larger diamond can look like a "big dull rock" if it isn't cut properly.