The diamond engagement ring has been the foremost symbol of betrothal for so long. In choosing such rings, though, one has to know the so-called “Four C’s” of diamond quality, a metric considered as important as a new car’s horsepower, fuel efficiency, and safety ratings.
A diamond’s four C’s are all based on the gem’s rarity—the rarer the C, the more it contributes to the price. All four C’s are completely independent of one another, meaning one C cannot explicitly state a specific piece’s overall value. The Four C’s metric has been around for a fairly short time (there wasn’t a universal standard until the mid-20th Century). Today, judging a diamond’s overall value is done entirely with the Four C’s, all of which you need to understand before shopping for a ring at various Chicago jewelers.