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Cushion|Lab Grown|IGI

11.45ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG618439643

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG618439643

Diamond specifications and retailer prices

From $2,834 CAD
£1,597 GBP
As of October 30, 2026
Save $23,149 CAD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $25,982 CAD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 11.45ct lab-grown cushion diamond

This 11.45ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG618439643 or 618439643. Listed at 19 retailers as of October 30, 2026, with prices from $2,834 to $25,982, a $23,149 spread on the same certified stone. Brilliant Earth lists it at $25,982. 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

11.45
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618439643
Dimensions12.43 × 12.29 × 7.97 mm
L/W Ratio1.01
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
12.43 mm12.29 mm11.45 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618439643
Side View
Table 63.0%Crown 38°Girdle: THK-VTKPavilion 31.2°Culet: NoneDepth 64.8%

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 30
Current: $25,982 CAD|Low: $2,834 CAD|High: $26,779 CAD|Avg: $7,005 CAD|+10.5%
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
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 10$2,834 CAD
Retailer 3$3,394 CAD
Retailer 6$3,517 CAD
Retailer 16$3,751 CAD
Retailer 7$4,251 CAD
Retailer 9$4,842 CAD
Retailer 15$5,027 CAD
Retailer 12$5,029 CAD
Retailer 2$5,308 CAD
Retailer 11$5,446 CAD
Retailer 13$6,528 CAD
Retailer 8$6,685 CAD
Retailer 14$8,388 CAD
Retailer 5$9,393 CAD
Retailer 4$9,966 CAD
Brilliant Earth$25,982 CAD

43 data points across 16 retailers

19 retailers$2,834 CAD to $25,982 CAD

A
Cheapest Retailer
-
$2,834 CAD
£1,597 GBP
A
Retailer 2
-
$3,394 CAD
$2,430 USD
View
Final sale: no returns
Retailer 3
-
$3,517 CAD
$2,518 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$3,751 CAD
$2,685 USD
View
A
Retailer 5
-
$4,251 CAD
$3,043 USD
View
A
Retailer 6
-
$4,842 CAD
£2,729 GBP
View
A
Retailer 7
-
$5,027 CAD
$3,599 USD
View
A
Retailer 8
-
$5,029 CAD
$3,600 USD
View
A
Retailer 9
-
$5,308 CAD
€3,619 EUR
View
A
Retailer 10
-
$5,446 CAD
ZAR 62,979 ZAR
View
Retailer 11
-
$6,528 CAD
A$7,190 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$6,685 CAD
£3,768 GBP
View
Retailer 13
-
$8,388 CAD
$6,005 USD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
$8,727 CAD
$6,247 USD
View
B+
Retailer 15
-
$9,393 CAD
$6,724 USD
View
B+
Retailer 16
-
$9,966 CAD
$7,135 USD
View
B
Retailer 17
-
$10,827 CAD
$7,751 USD
View
B
Retailer 18
-
$12,296 CAD
$8,803 USD
View
Most Expensive
B
Brilliant Earth
10794074A · Oct 31
$25,982 CAD
$18,600 USD
View
18 more retailers have this diamond
Prices start from $2,834 CADSave up to $23,149 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
11.45ct Cushion
$2,834 CAD