PreciousMetalCalc.comGold · Silver · Diamond
Secondary Market Estimate
Diamond Resale Value Calculator
Estimate how much you can get when selling your diamond. See realistic secondary market prices and where to sell for the best return.
GIA-aligned estimates
4C grading system
Natural & lab grown
Free · No signup
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
$0
Market midpoint
Low Estimate
$0
Conservative
High Estimate
$0
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
$0
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
Diamond Resale Value Calculator — Key Information
Resale RealityMost diamonds resell for 20-40% of original retail price. The resale market is driven by supply exceeding demand.
Best ChannelsOnline platforms (Worthy.com, iDo Now iDont) typically return 40-60% more than local jewellers for quality stones.
When Auction WorksChristie’s and Sotheby’s accept diamonds above 2 carats with exceptional color/clarity. Hammer prices can exceed retail.
Lab Grown ResaleLab grown diamonds have very low resale value (10-20% of purchase price) due to rapid price deflation in the market.
Documentation MattersA GIA certificate, original box, and purchase receipt all improve resale value. Missing paperwork reduces offers by 10-20%.
TimingDiamond prices fluctuate with commodity markets. Selling after a market peak is ideal. Monitor IDEX diamond price index.