Selling diamonds for cash and profit is easier than ever. Diamonds are valuable, though their ultimate value varies depending on the quality, determined by the diamond's cut, clarity, carat and color of the diamond. The problem is selling diamonds to interested buyers and still getting a good deal. Fortunately, now that's possible.

Determine How Much Your Diamond Is worth

Whether you're selling diamonds from a necklace, an engagement ring (with an engagement gone wrong) or something else, decide how much your diamonds are worth before you begin. You don't want to be taken advantage of. Speak to a professional jeweler or someone who knows something about selling diamonds and what makes a diamond valuable before you begin.

Keep the "Four C's" in mind:

Cut: If a diamond is cut properly - for the individual diamond - it will greatly enhance the stone's beauty and value.

Clarity: Lots of diamonds have imperfections, like bubbles or streak. The fewer your diamonds have, the more valuable they are.

Color: Diamond color varies greatly from a clear-white to a yellow color. The white diamonds are more rare, and more valuable.

Carat: This is the weight of a diamond. The larger the stone, the more it's worth, in general. Although, if you're selling diamonds with a small carat, but excellent cut, clarity and color, they might be worth more than large diamonds that fall short in these other areas.

Talk to several jewelers to get a good idea for how much your diamond is worth before you begin. Also, if the diamond has any kind of certification proving it's value, with the cut, clarity, color and carat clearly listed, use that. Selling diamonds can be very profitable. However, the price may vary depending on who you talk to, so know their approximate value before you begin so you can profit.