How Much is a 5 Carat Diamond?
Updated for 2025. Analysis of current market prices for Natural vs Lab Grown diamonds at the 5ct weight class.
The Short Answer
Natural Market: Expect to pay between $100,000 and $150,000 for a good quality 5 carat natural diamond.
Lab Grown Market: Expect to pay between $5,000 and $8,000 for a similar quality lab-grown stone.
*Prices are based on GIA/IGI certified stones with G-H Color and VS Clarity. ideal Cut.
Detailed Price Breakdown
When shopping for a 5 carat diamond, the price is heavily influenced by the "4Cs": Cut, Color, Clarity, and Carat. However, the origin (Natural vs. Lab) is the biggest price multiplier.
A 5 carat diamond is celebrity-tier territory. Natural diamonds of this size are incredibly rare investment pieces. Lab grown versions offer this massive look for a fraction of the cost.
Natural vs Lab Grown: The Price Visualized
Natural 5ct
Lab Grown 5ct
How Big is a 5 Carat Diamond?
Carat is a measure of weight, not visual size. However, for a standard round brilliant cut diamond, we can estimate the diameter.
A 5 carat diamond is approximately 11 millimeters across. This is a substantial size that will stand out noticeably on the hand.
Where to Buy a 5 Carat Diamond
We recommend buying online to save 30-40% compared to traditional brick-and-mortar stores. Here are our top rated retailers for 5ct stones.
Compare Other Diamond Sizes
Looking for a different size? Check out our other accurate market pricing guides to find the perfect diamond for your budget.