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Cushion|Lab Grown|IGI

3.03ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG579395083

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG579395083

Diamond specifications and retailer prices

From $778 CAD
$554 USD
As of October 28, 2026
Save $5,894 CAD (88%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,672 CAD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.03ct lab-grown cushion diamond

This 3.03ct 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 LG579395083 or 579395083. Listed at 12 retailers as of October 28, 2026, with prices from $778 to $6,672, a $5,894 spread on the same certified stone. Brilliant Earth lists it at $6,672. 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

3.03
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579395083
Dimensions8.36 × 8.31 × 5.51 mm
L/W Ratio1.01
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
8.36 mm8.31 mm3.03 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579395083
Side View
Table 64.0%Crown 41.2°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 66.3%

Caratlytics Score

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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 28
Current: $6,672 CAD|Low: $778 CAD|High: $6,897 CAD|Avg: $2,123 CAD|-3.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 4$778 CAD
Retailer 11$861 CAD
Retailer 7$927 CAD
Retailer 9$1,155 CAD
Retailer 12$1,274 CAD
Retailer 2$1,301 CAD
Retailer 6$1,424 CAD
Retailer 10$1,943 CAD
Retailer 3$2,176 CAD
Retailer 8$2,767 CAD
Retailer 5$3,614 CAD
Brilliant Earth$6,672 CAD

40 data points across 12 retailers

12 retailers$778 CAD to $6,672 CAD

A
Cheapest Retailer
-
$778 CAD
$554 USD
Final sale: no returns
A
Retailer 2
-
$861 CAD
$613 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$927 CAD
$660 USD
View
B+
Retailer 4
-
$1,155 CAD
$822 USD
View
A
Retailer 5
-
$1,274 CAD
$907 USD
View
A
Retailer 6
-
$1,301 CAD
€882 EUR
View
A
Retailer 7
-
$1,424 CAD
£798 GBP
View
B+
Retailer 8
-
$1,943 CAD
$1,383 USD
View
B+
Retailer 9
-
$2,176 CAD
$1,549 USD
View
B+
Retailer 10
-
$2,767 CAD
$1,970 USD
View
Price last confirmed 8 days ago
B
Retailer 11
-
$3,614 CAD
£2,026 GBP
View
Most Expensive
B
Brilliant Earth
16211350A · Oct 28
$6,672 CAD
$4,750 USD
View
11 more retailers have this diamond
Prices start from $778 CADSave up to $5,894 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
3.03ct Cushion
$778 CAD