Overview
In selecting a diamond, the rarity, value and beauty is determined by the four
factors mentioned above, called the 4C's: Carat Weight , Color
, Clarity , and Cut (proportions & finish). Today, many consumers are aware
of the 4C's, however, understanding how they determine value is important to
discover what appeals to you in selecting a diamond, and getting the most for
your money.
Carat Weight
Carat weight refers to the size of the diamond. Based on a standard unit of measure, one carat is divided into 100 points. The term originated from carob seeds that were used to balance scales in ancient times. Learn more
Carat weight refers to the size of the diamond. Based on a standard unit of measure, one carat is divided into 100 points. The term originated from carob seeds that were used to balance scales in ancient times. Learn more
Color
The most desirable diamonds are colorless because the absence of color enhances the diamond's ability to reflect a rainbow of color. Diamonds are graded on a scale of D (almost clear white) to N-Z (not sold at Diamonds.com). Learn more
The most desirable diamonds are colorless because the absence of color enhances the diamond's ability to reflect a rainbow of color. Diamonds are graded on a scale of D (almost clear white) to N-Z (not sold at Diamonds.com). Learn more
Clarity
Diamonds can contain slight imperfections. Often invisible to the naked eye, these natural birthmarks fall into two categories-inclusions (internal) and blemishes (external). Fewer inclusions increase the value of the stone. Learn more
Diamonds can contain slight imperfections. Often invisible to the naked eye, these natural birthmarks fall into two categories-inclusions (internal) and blemishes (external). Fewer inclusions increase the value of the stone. Learn more
Cut
Cut gives the diamond its brilliance. Of the four C's, it's the only one
dependent on a human touch. Using precise mathematical formulas, the cutter
transforms a diamond in the rough into a sparkling jewel that reflects and
refracts light. Learn more
Finding the right diamond for you
To understand how the 4C's work together to determine a diamond's rarity and value, consider this diagram, like a classic balance. For a given PRICE (the fulcrum), you balance the (Carat Weight) on the left side and (Color, Clarity, and Cutting) on the right side. To select a larger size for a given price, to stay in balance, you would choose a less rare quality diamond. To select a rarer quality diamond, to stay in balance, you would choose a smaller size.
To understand how the 4C's work together to determine a diamond's rarity and value, consider this diagram, like a classic balance. For a given PRICE (the fulcrum), you balance the (Carat Weight) on the left side and (Color, Clarity, and Cutting) on the right side. To select a larger size for a given price, to stay in balance, you would choose a less rare quality diamond. To select a rarer quality diamond, to stay in balance, you would choose a smaller size.
The combination of the 4C's is strictly personal preference. By understanding
this information, you can make the best choice. Realize that Carat Weight
affects the value by about 10-20% per step up or down in size, Color/Clarity by
about 10-15% per/grade, and Cut Quality can affect value by a considerable
amount (25-50%), as it is almost completely controlled by the cutter.
Diamonds.com's extensive online diamond education will teach you everything you need to know to choose the perfect diamond with confidence and success.
