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Diamond Buying Guide

Diamond Buying GuideDiamond Education

When shopping for a loose diamond, or diamond jewelry it is important to know how they are evaluated. There are four different characteristics to consider when comparing and evaluating diamonds: Carat Weight, Cut, Clarity, and Color, also known as the 4 C ’s. A diamond’s shape is also an important factor when choosing a diamond and we have outlined below the characteristics that determine quality for each of the shapes. Read this guide before buying a diamond, in order to make a more informed decision.


This term refers to the weight of the diamond, and not necessarily the size, as many might assume. Learn more about Diamond Carat


Diamonds are valued by how colorless they are; therefore the less color a diamond has the higher its value. However fancy-color diamonds (such as yellow and black diamonds) are an exception to this rule. Learn more about Diamond Color

  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K-M
  • N-Z


The cut of a diamond causes the greatest impact on its brilliance and sparkle. A diamond that is poorly cut will lack radiance even if it has perfect clarity and color. Learn more about
Diamond Cut

  • Ideal
  • Excellent
  • Very Good
  • Good
  • Fair
  • Poor


Clarity refers to the absence of imperfections and blemishes in a diamond. Almost all diamonds have minor imperfections, however, the fewer imperfections there are in a diamond the higher its clarity grading. Learn more about Diamond Clarity

  • IF
  • VVS1
  • VVS2
  • VS1
  • VS2
  • SI1
  • SI2
  • SI3


The first step in choosing a diamond is to decide between the ten different shapes available. Each of the diamond shapes has different characteristics, but the overall attraction to a certain shape is a matter of personal taste. Learn more about Diamond Shape


When purchasing a loose diamond you should expect to see a copy of its grading certificate. A diamond certificate proves that your diamond has gone through a thorough and unbiased professional examination. Learn more about Diamond Certification