CaratHunter
Plans
Cushion|Lab Grown|IGI

3.11ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG538202521

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG538202521

Diamond specifications and retailer prices

From $665 CAD
As of November 6, 2026
Save $1,673 CAD (72%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,338 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 3.11ct lab-grown cushion diamond

This 3.11ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG538202521 or 538202521. Listed at 9 retailers as of November 5, 2026, with prices from $665 to $2,338, a $1,673 spread on the same certified stone. MOH London lists it at $2,338. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.11
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538202521
Dimensions9.68 × 7.91 × 5.38 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.68 mm7.91 mm3.11 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538202521
Side View
Table 62.5%Crown 33.3°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 68.0%

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 6
Current: $2,338 CAD|Low: $665 CAD|High: $6,161 CAD|Avg: $2,154 CAD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$665 CAD
Retailer 5$730 CAD
Retailer 7$816 CAD
Retailer 11$965 CAD
Retailer 2$971 CAD
Retailer 8$1,049 CAD
Retailer 6$1,066 CAD
Retailer 10$1,478 CAD
MOH London$2,338 CAD
Retailer 3$3,787 CAD
Retailer 12$5,518 CAD
Retailer 4$6,161 CAD

10 data points across 12 retailers

9 retailers$665 CAD to $2,338 CAD

A
Cheapest Retailer
-
$665 CAD
A
Retailer 2
-
$730 CAD
View
A
Retailer 3
-
$816 CAD
View
B+
Retailer 4
-
$965 CAD
View
A
Retailer 5
-
$971 CAD
View
A
Retailer 6
-
$1,049 CAD
View
A
Retailer 7
-
$1,066 CAD
View
A
Retailer 8
-
$1,478 CAD
View
Most Expensive
B+
MOH London
LG538202521 · Nov 5
$2,338 CAD
£1,309 GBP
View
8 more retailers have this diamond
Prices start from $665 CADSave up to $1,673 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
3.11ct Cushion
$665 CAD