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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 $15,357 CAD
As of November 2, 2026
Save $56,973 CAD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $72,330 CAD at With Clarity · As of November 3, 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 November 2, 2026, with prices from $15,357 to $72,330, a $56,973 spread on the same certified stone. With Clarity lists it at $72,330. 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: Nov 2
Current: $27,603 CAD|Low: $15,357 CAD|High: $72,330 CAD|Avg: $31,780 CAD|-22.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
November 4, 2026
Retailer 8$15,357 CAD
Retailer 9$16,935 CAD
Retailer 10$17,195 CAD
Retailer 7$17,357 CAD
Retailer 4$21,031 CAD
Retailer 6$25,407 CAD
Retailer 1$27,603 CAD
Retailer 5$27,742 CAD
Retailer 3$45,384 CAD
Retailer 2$52,933 CAD
With Clarity$72,330 CAD

37 data points across 11 retailers

11 retailers$15,357 CAD to $72,330 CAD

A
Cheapest Retailer
-
$15,357 CAD
A
Retailer 2
-
$16,935 CAD
View
A
Retailer 3
-
$17,195 CAD
View
A
Retailer 4
-
$17,357 CAD
View
A
Retailer 5
-
$21,031 CAD
View
A
Retailer 6
-
$25,407 CAD
View
B+
Retailer 7
-
$27,603 CAD
View
B+
Retailer 8
-
$27,742 CAD
View
B+
Retailer 9
-
$45,384 CAD
View
B+
Retailer 10
-
$52,933 CAD
View
Most Expensive
B
With Clarity
821641122 · Nov 3
$72,330 CAD
$51,757 USD
View
10 more retailers have this diamond
Prices start from $15,357 CADSave up to $56,973 CAD

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
$15,357 CAD