CaratHunter
Plans
Cushion|Lab Grown|IGI

3.28ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG544280736

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG544280736

Diamond specifications and retailer prices

From $651 CAD
$465 USD
As of October 29, 2026
Save $6,543 CAD (91%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,194 CAD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.28ct lab-grown cushion diamond

This 3.28ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG544280736 or 544280736. Listed at 13 retailers as of October 28, 2026, with prices from $651 to $7,194, a $6,543 spread on the same certified stone. Brilliant Earth lists it at $7,194. 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

3.28
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544280736
Dimensions8.62 × 8.35 × 5.43 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
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
8.62 mm8.35 mm3.28 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG544280736
Side View
Table 65.0%Crown 36.3°Girdle: MED-VTKPavilion 37.3°Culet: NoneDepth 65.0%

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: Oct 29
Current: $7,194 CAD|Low: $349 CAD|High: $7,418 CAD|Avg: $1,892 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 12$651 CAD
Retailer 7$721 CAD
Retailer 4$788 CAD
Retailer 10$1,092 CAD
Retailer 9$1,103 CAD
Retailer 2$1,183 CAD
Retailer 6$1,262 CAD
Retailer 5$2,295 CAD
Retailer 3$2,364 CAD
Retailer 11$2,458 CAD
Retailer 13$2,632 CAD
Retailer 8$2,650 CAD
Brilliant Earth$7,194 CAD

37 data points across 13 retailers

13 retailers$651 CAD to $7,194 CAD

A
Cheapest Retailer
-
$651 CAD
$465 USD
Final sale: no returns
A
Retailer 2
-
$721 CAD
$515 USD
View
A
Retailer 3
-
$788 CAD
HK$4,400 HKD
View
A
Retailer 4
-
$1,092 CAD
$780 USD
View
B+
Retailer 5
-
$1,103 CAD
$788 USD
View
A
Retailer 6
-
$1,183 CAD
£665 GBP
View
A
Retailer 7
-
$1,262 CAD
€859 EUR
View
B+
Retailer 8
-
$2,295 CAD
SGD 2,216 SGD
View
B+
Retailer 9
-
$2,364 CAD
$1,689 USD
View
B+
Retailer 10
-
$2,458 CAD
$1,756 USD
View
B+
Retailer 11
-
$2,632 CAD
$1,880 USD
View
B+
Retailer 12
-
$2,650 CAD
£1,491 GBP
View
Most Expensive
B
Brilliant Earth
16422264A · Oct 28
$7,194 CAD
$5,140 USD
View
12 more retailers have this diamond
Prices start from $651 CADSave up to $6,543 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
3.28ct Cushion
$651 CAD