Get a realistic UK resale estimate for your diamond. Enter the 4Cs and certification status to see an approximate range.
Important Disclaimer
Diamond pricing is highly approximate. This estimate is based on UK wholesale market ranges and may not reflect your diamond’s specific characteristics (cut quality, fluorescence, symmetry). For items over 1 carat, we strongly recommend getting a professional valuation.
Estimates based on UK wholesale market data. Updated quarterly. Last update: Q1 2026.
We use a matrix of UK wholesale diamond prices based on the four primary grading factors: carat weight, colour, clarity, and certification status. The output is a range rather than a single figure because diamond pricing depends on many additional factors (cut quality, fluorescence, shape, inclusions, and market conditions) that a simple calculator cannot assess.
Why Diamonds Lose Value on Resale
Diamonds typically sell for 30–60% below retail price on the secondary market. This is not a flaw in the market — it reflects the difference between retail markup, certification costs, and wholesale pricing. Read our full guide: Do Diamonds Hold Their Value?