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Cushion|Lab Grown|IGI

4.51ct F VVS2 Cushion Lab Grown Diamond

EX • F/VVS2 • IGI LG782668976

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

Certificate IGI LG782668976

Diamond specifications and retailer prices

From $988 CAD
£557 GBP
As of November 2, 2026
Save $3,828 CAD (79%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,187 CAD at Queensmith · As of October 10, 2026
View at Queensmith

About this 4.51ct lab-grown cushion diamond

This 4.51ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG782668976 or 782668976. Listed at 18 retailers as of October 31, 2026, with a 388% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.51
Carat
F
Color
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782668976
Dimensions9.38 × 9.00 × 6.07 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.38 mm9.00 mm4.51 ctF / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782668976
Side View
Table 60.0%Crown 37.6°Girdle: STK-VTKPavilion 34.4°Culet: NoneDepth 67.4%

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: Nov 2
Current: $2,355 CAD|Low: $987 CAD|High: $4,876 CAD|Avg: $2,494 CAD|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 6$988 CAD
Retailer 5$1,068 CAD
Retailer 2$1,107 CAD
Retailer 12$1,355 CAD
Retailer 13$1,582 CAD
Retailer 7$1,772 CAD
Retailer 9$1,792 CAD
Retailer 1$2,355 CAD
Retailer 11$2,372 CAD
Retailer 3$3,643 CAD
Retailer 4$3,774 CAD
Retailer 8$4,662 CAD
Retailer 10$4,816 CAD

36 data points across 13 retailers

18 retailers$988 CAD to $4,816 CAD

A
Cheapest Retailer
-
$988 CAD
£557 GBP
A
Retailer 2
-
$1,068 CAD
$764 USD
View
Final sale: no returns
Retailer 3
-
$1,107 CAD
$792 USD
View
Price last confirmed 17 days ago
A
Retailer 4
-
$1,355 CAD
$970 USD
View
B+
Retailer 5
-
$1,582 CAD
$1,132 USD
View
A
Retailer 6
-
$1,717 CAD
$1,229 USD
View
A
Retailer 7
-
$1,772 CAD
£999 GBP
View
A
Retailer 8
-
$1,792 CAD
€1,221 EUR
View
A
Retailer 9
-
$2,355 CAD
ZAR 27,224 ZAR
View
A
Retailer 10
-
$2,372 CAD
A$2,611 AUD
View
A
Retailer 11
-
$2,615 CAD
$1,871 USD
View
B+
Retailer 12
-
$3,450 CAD
£1,944 GBP
View
B+
Retailer 13
-
$3,643 CAD
$2,607 USD
View
B+
Retailer 14
-
$3,774 CAD
$2,701 USD
View
B+
Retailer 15
-
$3,818 CAD
$2,732 USD
View
B+
Retailer 16
-
$4,662 CAD
£2,627 GBP
View
B+
Retailer 17
-
$4,816 CAD
A$5,302 AUD
View
Most Expensive
Queensmith
LG782668976 · Oct 10
$10,187 CAD
£5,740 GBP
View
Price last confirmed 23 days ago
17 more retailers have this diamond
Prices start from $988 CADSave up to $3,828 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
4.51ct Cushion
$988 CAD