Diamonds with a larger carat weight often cost more than their smaller counterparts, but that doesn't necessarily mean they're better, according to the Gemological Institute of America's website. 

If you've done a little research on diamonds, you will know that the four Cs (carat weight, clarity, color, and cut) are what defines the value and quality of a diamond. Carat weight is the global standardized measurement of the weights of gems including diamonds. A single carat reportedly weighs around 0.2 grams.

While carat weight is important, so are the other Cs; color, cut and clarity are just as important as weight. There's no point owing a giant diamond if it isn't bright and sparkly, right? If you agree, you need to make sure you're purchasing a diamond with a highly-rated cut, as cut style reportedly affects a diamond's "visual pizazz". That's right, your ring's diamond cut says a lot about you! Similarly, color grade and clarity become very important if you're purchasing an emerald-cut diamond in particular, because this cut isn't great at hiding inclusions. Size isn't everything, ladies!

For more about cuts, here's every type of diamond cut explained.