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Cushion|Lab Grown|IGI

4.51ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG839647911

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG839647911

Diamond specifications and retailer prices

From $1,198 CAD
HK$6,700 HKD
As of October 31, 2026
Save $3,660 CAD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,858 CAD at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.51ct lab-grown cushion diamond

This 4.51ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839647911 or 839647911. Listed at 17 retailers as of October 31, 2026, with prices from $1,198 to $4,858, a $3,660 spread on the same certified stone. With Clarity lists it at $4,858. 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
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle32.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839647911
Dimensions11.33 × 8.15 × 5.44 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.33 mm8.15 mm4.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839647911
Side View
Table 59.0%Crown 34.9°Girdle: MED-THKPavilion 32.9°Culet: NoneDepth 66.7%

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 31
Current: $1,593 CAD|Low: $1,002 CAD|High: $8,339 CAD|Avg: $2,950 CAD|-3.0%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
With Clarity
October 31, 2026
Retailer 4$1,002 CAD
Retailer 12$1,198 CAD
Retailer 9$1,255 CAD
Retailer 14$1,278 CAD
Retailer 1$1,593 CAD
Retailer 15$1,697 CAD
Retailer 2$1,960 CAD
Retailer 5$2,189 CAD
Retailer 7$2,284 CAD
Retailer 10$2,394 CAD
Retailer 6$3,236 CAD
Retailer 13$3,461 CAD
Retailer 17$3,463 CAD
Retailer 3$3,582 CAD
Retailer 8$3,995 CAD
Retailer 16$4,378 CAD
Retailer 11$4,414 CAD
With Clarity$4,858 CAD

22 data points across 18 retailers

17 retailers$1,198 CAD to $4,858 CAD

A
Cheapest Retailer
-
$1,198 CAD
HK$6,700 HKD
Retailer 2
-
$1,255 CAD
£708 GBP
View
Price last confirmed 15 days ago
A
Retailer 3
-
$1,278 CAD
$915 USD
View
A
Retailer 4
-
$1,593 CAD
€1,086 EUR
View
B+
Retailer 5
-
$1,697 CAD
$1,215 USD
View
A
Retailer 6
-
$1,960 CAD
$1,403 USD
View
Retailer 7
-
$2,189 CAD
ZAR 25,314 ZAR
View
Price last confirmed 8 days ago
Retailer 8
-
$2,284 CAD
A$2,516 AUD
View
Price last confirmed 11 days ago
A
Retailer 9
-
$2,394 CAD
$1,714 USD
View
B+
Retailer 10
-
$3,236 CAD
£1,824 GBP
View
B+
Retailer 11
-
$3,461 CAD
SGD 3,348 SGD
View
B+
Retailer 12
-
$3,463 CAD
$2,479 USD
View
B+
Retailer 13
-
$3,582 CAD
$2,565 USD
View
Retailer 14
-
$3,995 CAD
$2,860 USD
View
Price last confirmed 13 days ago
B+
Retailer 15
-
$4,378 CAD
£2,468 GBP
View
B+
Retailer 16
-
$4,414 CAD
$3,160 USD
View
Most Expensive
B+
With Clarity
839647911 · Oct 31
$4,858 CAD
$3,478 USD
View
16 more retailers have this diamond
Prices start from $1,198 CADSave up to $3,660 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
$1,198 CAD