Diamond Articles

What are Diamonds Worth?

May 10, 2018 - Diamond Articles
There seems to be an endless array of conflicting information for determining what diamonds are worth. But finding out what your diamond is worth does not need to be a difficult process. We are here to guide you through the steps for determining what affects a diamonds value and how much your diamonds worth.


Factors that affect your diamonds worth

There are a wide array of factors that affect a diamonds worth. The most important factors are commonly referred to as the 4 C’s:

  1. Carat Weight: This refers to how much a diamond weighs in carats, often abbreviated to ct.
  2. Cut Grade: This indicates the cut quality and proportions of a diamond with grades that range from Excellent to Poor. Excellent cuts are desirable because they can best reflect light which creates a sparkling appearance. Keep in mind that only round diamonds have cut grades. Fancy cut diamonds, such as ovals and hearts, do not have official cut grades.
  3. Colour Grade: This denotes how much colour a diamond has. The less colour a white diamond has the more valuable it is, conversely, the more colour a fancy coloured diamond has, it’s value increases. White diamonds are graded from D-Z, with D as colourless and Z a light yellow. However, fancy coloured diamonds do not have a letter grade, but are graded from Fancy Light to Fancy Vivid to indicate how much colour is displayed.
  4. Clarity Grade: This indicates the amount of internal and external marks on a diamond, known as inclusions and blemishes. These grades range from FL to I3, with FL used to denote a flawless diamond and I3 to refer to a visibly flawed diamond. While a diamond may appear flawless, when it is examined under a loupe, imperfections can be seen.


Additional Diamond Criteria: In addition to the 4 C’s, there is further criteria to know about your diamond:

what are diamonds worth

  • Shape: Diamonds can be cut into an array of shapes with round brilliant leading the way as the most popular cut. Any other cuts, such as emeralds and cushions, are known as fancy cuts. The value of fancy cut diamonds can vary depending on market trends.
  • Polish: When diamonds are cut and polished, microscopic abrasions may occur. Polish indicates the smoothness for each facet of a diamond, graded on a scale of Excellent to Poor.
  • Symmetry: This indicates how well aligned the facets of the diamond are, including the diamond’s table, crown, girdle and culet. A diamond’s symmetry is graded on a scale from Excellent to Poor.
  • Fluorescence: This denotes how much a diamond glows under ultraviolet light, these grades range from None to Very Strong. Typically the more fluorescence a diamond has, the lower its value.
  • Treatment: Diamonds can receive artificial treatments to improve its colour or clarity, such as fracture filling or HPHT. Treated diamonds are considered to be less valuable than natural diamonds.
  • Certifications: This refers to a diamond grading report, such as a GIA report. A diamond certificate issued by a reputable diamond-grading laboratory is a great resource that will detail all of the characteristics of your stone.


How can I calculate my diamond’s worth?

While there are endless online diamond calculators that claim to be able to accurately price your diamond, their results are often wildly inaccurate. This is because calculating the exact value of your diamond is a very difficult process, part art and part science, and requires a trained gemmologist. Your best option for getting a firm price is to have your diamond examined by a GIA certified gemmologist with an in depth understanding of the complexities of the second-hand diamond market.

diamonds worth

If you would like to receive a price quote, WP Diamonds is here to help. Simply fill out or online form and one of our GIA certified gemmologists will get back to you with an initial valuation.

Getting your diamond evaluated with WP Diamonds is easy, fast and free. We have a team of GIA certified gemmologists with the necessary skills and experience to accurately price your diamond. As an established, international business, we are able to use our global connections to give you the most competitive offer for your diamonds. You can feel confident working with us because of our 100% trust guarantee and hundreds of positive reviews from satisfied customers.

Click the button below to get your offer.

How to get a final price for my diamond?

Once you receive your price quote from us and want to get a final offer for your diamond, we provide two convenient methods. You can either schedule an appointment to have your diamond appraised in person or mail-in your diamond. Both options are entirely free and easy.


  1. Sell your diamond in-person

We offer appointments in:

  • Birmingham Every Monday through Friday from 10 am to 5pm.
  • London: Offered on a monthly basis, please inquire for our next appointment day.

diamonds worth

Our appointments are 30 minutes long, during which you will meet with one of our diamond experts who will evaluate your diamond and offer you a firm price as well as an explication for how your diamond was priced. Please contact us to schedule your appointment at any of our locations. If you like your offer, you can receive payment for your diamond by bank transfer.

Click the button below to make your appointment.

  1. Mail-in your diamond

You can mail-in your diamond to us from anywhere in the UK for free. After you receive your initial price quote we can provide you with a Royal Mail Special Delivery Pack and instructions on how to safely package and mail your diamond. This mailing service is entirely free and insured, so you can rest assured that your diamond is safe at every step of the process.

When your diamond arrives at our office, it will be opened on camera and evaluated by our GIA trained gemmologists. We will contact you with our final offer which you can accept through bank transfer. If you do not like this offer, we will mail your jewellery back to you, no questions asked.

Click the button below to receive your price quote today.

Bio: Written by one of our diamond, designer jewelry or luxury watch experts. With over 150 years of combined experience, our experts are able to comment on trends, share industry knowledge and provide diamond, designer jewelry and luxury watch education.

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