Tucson Pima Open Studio Tour | Key Factors that Affects Diamond Price
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Key Factors that Affects Diamond Price

Key Factors that Affects Diamond Price

Selling a diamond is can be a major headache. It involves a complex process that you must learn and understand. You can’t go to a jeweler and demand them to buy your stone. Just because your loved one said it is a precious heirloom passed down from generations does not make it valuable.

Diamonds have more than meets the eyes. Each one is unique and possesses different characteristics that could affect its price. It is one of the reasons why diamond pricing can be complicated. Gemmologists and jewelers have to examine the stone for grading. And the result of the test will determine the price of the stone. Hence, not all diamonds have a value worth millions.

Various factors affect diamond pricing. Gemmologists use these factors in putting a value to the stone. In this manner, both the seller and buyer can expect equal market appraisal.

What are these Key Factors that Affect Diamond Price?

#1 The 4C’s

Gemologists assess diamonds based on the 4C’S. The 4C’s is a term used to identify the following characteristics:

  • Cut
  • Clarity
  • Color
  • Carat Weight


Diamond cut directly affects its brilliance. Diamonds with excellent cut tend to have a higher price because of its return of fire and depth. Poorly cut diamonds are cheaper.

Meanwhile, clarity pertains to the flawlessness of the stone. Gemmologists call these diamonds as “eye clean” because of the absence of marks even under unaided eye inspection.

The color of a diamond is another factor that determines its price. Diamond colors range from colorless to light yellow. Colorless diamonds are the most expensive because of their rarity.

Carat is the weighing scale of diamonds. A diamond that weighs a full or above a carat is more expensive compared to ones that weigh below a full carat.

#2 Fluorescence

The 4C’s are only some of the factors you have to check out before selling a diamond. But there are more indicators you have to learn beyond the 4C’s. One of them is diamond fluorescence.

Fluorescence is how a diamond reacts to UV light. It can increase or decrease the stone’s price depending on cases. Most buyers today prefer diamonds with fluorescence instead of none.

            #3 Symmetry

Diamond Symmetry refers to the shaping and arrangement of diamond facets. Diamonds with clean and high symmetry has a higher value and significantly increases its price. The ideal diamond symmetry is 58 facets and culet.

            #4 Shape

You probably already noticed that diamonds come in varying shapes. The diamond shape also has a significant impact on its value. Its shape can affect the way the light reflects on the stone. Thus, a diamond in geometric shape tends to have a higher value. Examples of popular diamond shapes are princess, emerald, oval, and marquise.

            #5 Certification

Diamonds with certification from GIA sells fast compared to those with none. If your diamond ring does not have GIA certification, it does not mean you can’t sell it. Many jewelers today, like the Speedy Diamond, offers diamond assessment as a part of their service. They test the diamond to find out the grading.


In a nutshell, it is crucial to educate yourself first before selling a diamond. Learning the factors that affect diamond pricing can help you avoid scams. Most of all, you can earn the best value of your diamond.

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