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Radiant|Lab Grown|IGI

5.31ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG821641122

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG821641122

Diamond specifications and retailer prices

From €9,836 EUR
$10,989 USD
As of October 30, 2026
Save €36,491 EUR (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €46,327 EUR at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.31ct lab-grown radiant diamond

This 5.31ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821641122 or 821641122. Listed at 11 retailers as of October 30, 2026, with prices from €9,836 to €46,327, a €36,491 spread on the same certified stone. With Clarity lists it at €46,327. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.31
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.9°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821641122
Dimensions12.37 × 8.78 × 5.63 mm
L/W Ratio1.41
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.37 mm8.78 mm5.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821641122
Side View
Table 65.0%Crown 42.9°Girdle: Slightly ThickPavilion 33.4°Culet: NoneDepth 64.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €16,273 EUR|Low: €9,836 EUR|High: €46,327 EUR|Avg: €20,419 EUR|-39.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
October 30, 2026
Retailer 7€9,836 EUR
Retailer 9€10,847 EUR
Retailer 10€11,013 EUR
Retailer 6€11,117 EUR
Retailer 3€13,471 EUR
Retailer 1€16,273 EUR
Retailer 4€17,864 EUR
Retailer 5€19,031 EUR
Retailer 8€31,369 EUR
Retailer 2€33,904 EUR
With Clarity€46,327 EUR

32 data points across 11 retailers

11 retailers€9,836 EUR to €46,327 EUR

A
Cheapest Retailer
-
€9,836 EUR
$10,989 USD
A
Retailer 2
-
€10,847 EUR
$12,118 USD
View
A
Retailer 3
-
€11,013 EUR
$12,304 USD
View
A
Retailer 4
-
€11,117 EUR
$12,420 USD
View
A
Retailer 5
-
€13,471 EUR
£11,850 GBP
View
A
Retailer 6
-
€16,273 EUR
$18,180 USD
View
A
Retailer 7
-
€17,864 EUR
£15,715 GBP
View
Retailer 8
-
€19,031 EUR
View
Price last confirmed 8 days ago
B
Retailer 9
-
€31,369 EUR
$35,046 USD
View
B+
Retailer 10
-
€33,904 EUR
$37,878 USD
View
Most Expensive
B
With Clarity
821641122 · Oct 31
€46,327 EUR
$51,757 USD
View
10 more retailers have this diamond
Prices start from €9,836 EURSave up to €36,491 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
5.31ct Radiant
€9,836 EUR