Loose Diamond Market Prices
Analysis of 269,509 loose diamond listings to determine current market value based on stone specifications.
What you'll usually pay
👉 In short easy summary
The best value is found in Lab-Created stones and Round shapes, both centering around the 239 median. Natural diamonds command a significant premium with a 252% increase over the market median.
💚 Best value for your money
Price by total carat weight
Why? Prices scale with size, ranging from 160.71 for 0.24 ctw & Under to 436.25 for 0.50 ctw - 0.74 ctw.
Price by stone creation
Why? Natural diamonds are significantly more expensive at 844.5 compared to Lab-Created at 239.
Price by stone shape
Why? Cushion cuts are the most expensive at 909.96, while Round cuts are the most affordable at 239.
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Common questions
What is the price difference between lab-grown and natural diamonds?
Lab-Created diamonds have a median price of 239, while Natural diamonds have a median of 844.5.
Which diamond shape is generally the most expensive?
Cushion shaped diamonds have the highest median price at 909.96.
How does carat weight affect the median price?
The median price increases from 160.71 for stones 0.24 ctw & Under up to 436.25 for stones between 0.50 ctw - 0.74 ctw.
How we got these numbers
Worked out from 200 live eBay listings (price range $100–$15,442, odd outliers ignored). These are asking prices, so use them as a guide. Last checked July 1, 2026.