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Natural vs Lab Grown Comparison
Lab Grown Diamond Price Calculator
Compare the price of natural and lab-grown diamonds at equivalent quality grades. See exactly how much a lab diamond saves.
GIA-aligned estimates
4C grading system
Natural & lab grown
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These are market range estimates based on simplified 4C grade inputs. Actual values vary significantly. Always get a GIA-certified appraisal for insurance or major selling decisions.
e.g. 0.5, 1.0, 1.5, 2.0
Estimated Value
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Market midpoint
Low Estimate
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Conservative
High Estimate
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Optimistic
How Each Grade Affects Value
Cut: Very Good
Brilliance and light performance
Standard
Color: G
Near colorless — difficult to detect
Standard
Clarity: VS1
Inclusions not visible to naked eye
Standard
Natural vs Lab Grown at This Grade
Natural Diamond
$0
Mined diamond
Lab Grown Diamond
$0
~70% lower price, same physical properties
Measure across widest point
Measure shorter axis
Measure girdle to culet
From grading report if available
0.00
estimated carats
Based on shape formula. Within 5-10% of actual weight for well-proportioned stones.
Original purchase or appraisal price
Estimated Resale
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Secondary market
% of Purchase Price
0%
Typical retention
Buyer Offer Range
$0
Dealer / consignment
Where to Sell a Diamond
Online Diamond Buyer
Abe Mor, WP Diamonds, Worthy.com
$0
Local Jeweller
Trade-in or cash offer
$0
Auction (Sotheby's / Christie's)
Best for 2ct+ exceptional stones
$0
Consignment Sale
Worthy, I Do Now I Don't
$0
Lab Grown Diamond Price Calculator — Key Information
Lab vs NaturalLab grown diamonds have identical physical, chemical and optical properties to natural diamonds. Only origin differs.
Price Gap 2026Lab diamonds now sell for 70-80% less than equivalent natural diamonds. A $5,000 natural diamond equivalent costs $1,000-$1,500 lab.
Value Over TimeLab diamond prices have fallen 80%+ since 2019 and continue declining as production scales. They do not hold value.
Who CertifiesGIA, IGI and GCAL all certify lab grown diamonds with the same 4C grading system used for natural stones.
Best BrandsLightbox (De Beers), Clean Origin, Brilliant Earth, James Allen, and Ritani all offer quality lab grown options.
Resale WarningLab grown diamonds have minimal resale value. Buy for beauty, not investment. Natural diamonds retain value better long term.