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Cushion|Lab Grown|IGI

11.73ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG578328940

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG578328940

Diamond specifications and retailer prices

From $2,785 CAD
$1,994 USD
As of October 29, 2026
Save $10,304 CAD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $13,089 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 11.73ct lab-grown cushion diamond

This 11.73ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG578328940 or 578328940. Listed at 11 retailers as of October 29, 2026, with prices from $2,785 to $13,089, a $10,304 spread on the same certified stone. Brilliant Earth lists it at $13,089. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

11.73
Carat
G
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578328940
Dimensions15.55 × 12.00 × 8.24 mm
L/W Ratio1.30
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
15.55 mm12.00 mm11.73 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578328940
Side View
Table 64.0%Crown 35.6°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 68.7%

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: $13,089 CAD|Low: $1,991 CAD|High: $13,089 CAD|Avg: $5,960 CAD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 7$2,785 CAD
Retailer 5$2,886 CAD
Retailer 2$4,092 CAD
Retailer 6$4,449 CAD
Retailer 4$4,529 CAD
Retailer 3$4,585 CAD
Retailer 8$5,982 CAD
Retailer 9$8,797 CAD
Retailer 10$10,880 CAD
Brilliant Earth$13,089 CAD

40 data points across 10 retailers

11 retailers$2,785 CAD to $13,089 CAD

A
Cheapest Retailer
-
$2,785 CAD
$1,994 USD
Final sale: no returns
Retailer 2
-
$2,886 CAD
$2,066 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$4,092 CAD
£2,306 GBP
View
A
Retailer 4
-
$4,449 CAD
$3,185 USD
View
B+
Retailer 5
-
$4,529 CAD
$3,242 USD
View
A
Retailer 6
-
$4,585 CAD
€3,126 EUR
View
A
Retailer 7
-
$5,982 CAD
£3,372 GBP
View
Retailer 8
-
$8,797 CAD
$6,298 USD
View
Price last confirmed 51 days ago
B+
Retailer 9
-
$10,116 CAD
$7,242 USD
View
B+
Retailer 10
-
$10,880 CAD
$7,789 USD
View
Most Expensive
B
Brilliant Earth
21584506A · Oct 29
$13,089 CAD
$9,370 USD
View
10 more retailers have this diamond
Prices start from $2,785 CADSave up to $10,304 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
11.73ct Cushion
$2,785 CAD