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Cushion|Lab Grown|IGI

5.05ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG838637523

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG838637523

Diamond specifications and retailer prices

From $987 CAD
$706 USD
As of November 1, 2026
Save $7,412 CAD (88%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,398 CAD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 5.05ct lab-grown cushion diamond

This 5.05ct lab-grown cushion sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG838637523 or 838637523. Listed at 11 retailers as of November 1, 2026, with prices from $987 to $8,398, a $7,412 spread on the same certified stone. Brilliant Earth lists it at $8,398. 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

5.05
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838637523
Dimensions10.06 × 9.83 × 6.45 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.06 mm9.83 mm5.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838637523
Side View
Table 63.0%Crown 36.1°Girdle: MED-THKPavilion 37.5°Culet: NoneDepth 65.6%

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 1
Current: $8,398 CAD|Low: $987 CAD|High: $10,397 CAD|Avg: $3,259 CAD|-19.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9$987 CAD
Retailer 4$1,142 CAD
Retailer 7$1,188 CAD
Retailer 3$1,309 CAD
Retailer 5$1,698 CAD
Retailer 2$1,784 CAD
Retailer 10$1,854 CAD
Retailer 8$2,230 CAD
Retailer 11$3,526 CAD
Retailer 6$4,304 CAD
Brilliant Earth$8,398 CAD

30 data points across 11 retailers

11 retailers$987 CAD to $8,398 CAD

A
Cheapest Retailer
-
$987 CAD
$706 USD
Final sale: no returns
A
Retailer 2
-
$1,142 CAD
£644 GBP
View
A
Retailer 3
-
$1,188 CAD
$850 USD
View
B+
Retailer 4
-
$1,309 CAD
$937 USD
View
B+
Retailer 5
-
$1,698 CAD
£957 GBP
View
B+
Retailer 6
-
$1,784 CAD
€1,216 EUR
View
B+
Retailer 7
-
$1,854 CAD
$1,327 USD
View
B+
Retailer 8
-
$2,230 CAD
$1,596 USD
View
B
Retailer 9
-
$3,526 CAD
$2,523 USD
View
B
Retailer 10
-
$4,304 CAD
£2,425 GBP
View
Most Expensive
B
Brilliant Earth
21684254A · Nov 2
$8,398 CAD
$6,010 USD
View
10 more retailers have this diamond
Prices start from $987 CADSave up to $7,412 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
5.05ct Cushion
$987 CAD