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Diamond Price Calculator: How Much Are Diamonds Worth?

By Mike Fried,

A diamond price calculator is a convenient online tool that helps you estimate the value or cost of a diamond based on its key attributes, such as carat weight, cut, color, and clarity. By inputting these specific details, the calculator provides an approximate price range for the diamond, serving as a useful benchmark when shopping or selling. Our calculator is generally free to use and can offer insights into how different factors affect the diamond’s overall value.

Pick a diamond shape, color, clarity, cut grade, and fluorescence and you’ll get the minimum, average, and maximum price points. Then just browse through the samples picked by the calculator.

Calculator Input

TheDiamondsProTheDiamondsPro

Calculator TheDiamondsProTheDiamondsPro

Shape

Round Brilliant

Princess

Cushion

Emerald Cut

Oval

Radiant

Asscher

Marquise

Heart Shape

Pear Shape

Carats
Color
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
Clarity
  • FL
  • IF
  • VVS1
  • VS1
  • VS2
  • SI1
  • SI2
GIA Cut Grade
Excellent
Very Good
Good
Fluorescence
  • None
  • Faint
  • Medium
  • Strong
  • +Strong

Calculator Output

TheDiamondsPro
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The Four C’s (Plus a Bonus one) and how we Determine Diamond Prices

Once you’ve settled on a diamond shape, which is a matter of personal preference, it’s time to focus on quality. Diamond prices are calculated based off of their characteristics. These are commonly referred to as the 4 C’s: Color, Clarity, Cut and Carat. I will add a bonus ‘C’: Certificate.

Color: The diamond color scale goes from D – Z. D color diamonds are perfectly clear and diamonds appear to gain a yellow tint as you move further down the scale. We recommend purchasing diamonds in the G-J color ranges. Clarity: Diamond clarity refers to the blemishes and imperfections found within the diamond. The scale goes from FL (flawless) to I4 (included). We recommend finding an eye-clean diamond in the VS2 – SI2 range.
Cut: Cut refers to the proportions and dimensions of the diamond. The better the cut, the more fire and brilliance there will be. Carat: Carat is the weight measurement we use for diamonds. One carat equals 0.20 grams.
Certificate: Often overlooked, a certificate from an independent lab is very important. Color and clarity grades, which have a major impact on the price of a diamond, are subjective. A GIA certificate (the most trusted lab) will ensure you are getting the qualities the seller is claiming the diamond to be.
To help you with the diamond buying process we lean on our expertise and experience. The author of this article, our CEO, Mike Fried has over 20 years of experience in the diamond industry. Mike started from the bottom, sorting and evaluating hundreds of thousands of diamonds to learn every facet (pun intended) of diamond quality and value. Mike followed that up by spending years buying and selling diamonds on the wholesale market as well as selling tens of millions of dollars worth of diamonds to diamond retailers.
The Diamond Pro survey results showing average spend for engagement rings.
James Allen James Allen is the leader in online diamond sales. Their imaging technology is the same as inspecting a diamond with a jeweler's loupe. They have the largest exclusive loose diamond inventory online and fantastic prices. They also have the nicest collection of lab-created diamonds online.
What we love about them:
  • No questions asked returns within 30 days of shipment. James Allen will send you a paid shipping label to return the ring.
  • Lifetime Warranty
  • Free International Shipping
  • Free prong tightening, repolishing, rhodium plating and cleaning every 6 months
  • Provide insurance appraisals
  • One free resizing within 60 days of purchase
  • Free ring inscriptions
  • Best-in-class high quality imagery of all diamonds in stock
  • 24/7 Customer Service
  • Best-in-class packaging
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Blue Nile Blue Nile is the largest and most well-known internet jewelry seller. They have a very large exclusive online inventory. Their high-quality images are catching up to James Allens' and their prices are amazing. Save 25% on settings at Blue Nile!

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What we love about them:
  • No questions asked returns within 30 days of shipment. Blue Nile will send you a paid shipping label to return the ring.
  • Lifetime Warranty
  • Free Shipping
  • Free prong tightening, repolishing, rhodium plating and cleaning every 6 months
  • Provide insurance appraisal
  • One free resizing within the first year of purchase
  • High quality images of about half of their diamonds
  • 24/7 Customer Service
  • 100% credit towards future upgrades (must be at least double in value)
  • Best in class fulfillment
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About the author

Mike Fried Mike Fried Mike Fried has over 25 years experience in the diamond industry working with Leo Schachter Diamonds, Moshe Namdar Diamonds, and joining The Diamond Pro in 2007. He is recognized as an industry expert and has been quoted in publications such as Us, People, Page Six, The Next Web and more.

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