A diamond is graded on the four C's: carats, clarity, color and cut. One of the sturdiest materials on earth, it has been an emblem of love for a centuries. Impact takes a look at how diamonds can be weighed in carats; the natural versus enhanced clarity of a stone, the color of the diamond from clear to red, and the shape of the cut. We also get advice on the best places to look for a diamond, and how to pick the perfect one.
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