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Cushion|Lab Grown|IGI

3.21ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG625441166

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG625441166

Diamond specifications and retailer prices

From $861 CAD
$615 USD
As of October 29, 2026
Save $3,137 CAD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,998 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 3.21ct lab-grown cushion diamond

This 3.21ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG625441166 or 625441166. Listed at 11 retailers as of October 29, 2026, with prices from $861 to $3,998, a $3,137 spread on the same certified stone. MOH London lists it at $3,998. 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

3.21
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625441166
Dimensions10.21 × 7.71 × 5.06 mm
L/W Ratio1.32
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
10.21 mm7.71 mm3.21 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625441166
Side View
Table 64.0%Crown 34.1°Girdle: MED-STKPavilion 35.8°Culet: NoneDepth 65.6%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $3,998 CAD|Low: $554 CAD|High: $6,928 CAD|Avg: $2,388 CAD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 11$861 CAD
Retailer 10$953 CAD
Retailer 5$1,029 CAD
Retailer 8$1,276 CAD
Retailer 9$1,453 CAD
Retailer 2$1,485 CAD
Retailer 12$1,615 CAD
Retailer 7$2,078 CAD
Retailer 3$3,091 CAD
Retailer 6$3,597 CAD
MOH London$3,998 CAD
Retailer 4$6,928 CAD

42 data points across 12 retailers

11 retailers$861 CAD to $3,998 CAD

A
Cheapest Retailer
-
$861 CAD
$615 USD
Final sale: no returns
Retailer 2
-
$953 CAD
$681 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$1,029 CAD
$735 USD
View
B+
Retailer 4
-
$1,276 CAD
$912 USD
View
A
Retailer 5
-
$1,485 CAD
£835 GBP
View
B+
Retailer 6
-
$1,615 CAD
$1,154 USD
View
B+
Retailer 7
-
$2,078 CAD
$1,485 USD
View
B
Retailer 8
-
$3,091 CAD
$2,208 USD
View
Retailer 9
-
$3,597 CAD
$2,570 USD
View
Price last confirmed 11 days ago
Retailer 10
-
$3,991 CAD
$2,851 USD
View
Price last confirmed 86 days ago
Most Expensive
B
MOH London
LG625441166 · Oct 29
$3,998 CAD
£2,249 GBP
View
10 more retailers have this diamond
Prices start from $861 CADSave up to $3,137 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
3.21ct Cushion
$861 CAD