Diamond Weight Calculator

Select the shape of your diamond below:

The shape of my diamond is

mm

This will be the same number for the widest point for round diamonds.

mm
mm
Diamond graphic indicating the measurements

Your Diamond Carat Weight is

Looking to calculate the carat weight of your diamond? Our online diamond carat calculator helps you determine the weight of your stone.

HOW TO USE THE DIAMOND CALCULATOR

Follow the steps below to find out how much your diamond weights in carats:

  • Measure the length, width and height of your diamond in mm
  • Enter the measurements in our diamond calculator
  • Find out the carat weight of your diamond

WHAT IS CARAT WEIGHT?

Carat weight is a unit of measurement used to calculate the weight of a gemstone. Derived from “carob seeds”, these seeds were used in ancient times to weigh precious stones due to their uniformity in weight. One carat is equal to approximately 0.20g.

Often confused with the size of a stone, carat weight does in fact refer to its weight. While there is a strong correlation between carat weight and size, two diamonds of identical carat weight can look different in size if they are different cuts. Emerald diamonds, for example, typically look larger than round diamonds of the same carat weight due to their large surface area.

Carat weight plays a pivotal role in the value of a diamond. The larger the diamond, the more valuable it is. The reason being is that larger diamonds are rarer and therefore more sought after than smaller diamonds. At WP Diamonds, we specialize in purchasing stones of 0.5ct and larger.

HOW CAN I GET A PRICE FOR MY DIAMOND?

Fill out our online form to receive a price quote for your diamond. To receive a final price, or if you do not have any information on your stone, simply schedule an appointment at our Hong Kong office. Our diamond experts will provide you with a final price and payment. WP Diamonds offers a quick and easy way to sell for the best prices in Asia.

TIPS FOR SELLING DIAMONDS ONLINE

Work with an established diamond buyer: It is important to find an established and reputable diamond buyer that has already worked with a large amount of satisfied customers. Look at their customer reviews and research the company.
Do not pay to sell your diamond: There should never be any fees or costs involved when it comes to selling your stone. At WP Diamonds, your price quote and the insured mailing option is entirely free of charge, with no hidden costs.
Choose diamond experts: Non-specialist buyers will not be able to make you the most competitive offer for your diamond. Always work with trained and qualified gemmologists that are diamond experts.

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