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Cushion|Lab Grown|IGI

4.09ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG833631311

Shape and cutting style on the report: Rectangular cushion mixed cut

Certificate IGI LG833631311

Diamond specifications and retailer prices

From $1,038 USD
As of October 31, 2026
Save $2,554 USD (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,592 USD at MOH London · As of November 1, 2026
View at MOH London

About this 4.09ct lab-grown cushion diamond

This 4.09ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG833631311 or 833631311. Listed at 14 retailers as of October 31, 2026, with prices from $1,038 to $3,592, a $2,554 spread on the same certified stone. MOH London lists it at $3,592. 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

4.09
Carat
F
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833631311
Dimensions11.47 × 7.84 × 4.78 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.47 mm7.84 mm4.09 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833631311
Side View
Table 55.0%Crown 32.4°Girdle: STK-VTKPavilion 42.1°Culet: LargeDepth 61.0%

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: $3,592 USD|Low: $949 USD|High: $12,585 USD|Avg: $3,280 USD|-61.2%
MOH London
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
November 1, 2026
Retailer 6$949 USD
Retailer 5$1,038 USD
Retailer 11$1,155 USD
Retailer 2$1,472 USD
Retailer 13$1,544 USD
Retailer 8$1,571 USD
Retailer 12$1,685 USD
Retailer 10$2,040 USD
Retailer 9$2,053 USD
Retailer 3$2,103 USD
Retailer 14$2,975 USD
Retailer 15$3,043 USD
Retailer 4$3,319 USD
MOH London$3,592 USD
Retailer 7$6,233 USD

26 data points across 15 retailers

14 retailers$1,038 USD to $3,592 USD

Retailer 1
-
$949 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$1,038 USD
View
Final sale: no returns
A
Retailer 3
-
$1,155 USD
View
A
Retailer 4
-
$1,472 USD
£1,159 GBP
View
A
Retailer 5
-
$1,544 USD
View
A
Retailer 6
-
$1,571 USD
€1,496 EUR
View
A
Retailer 7
-
$1,685 USD
View
B+
Retailer 8
-
$2,040 USD
ZAR 32,950 ZAR
View
B+
Retailer 9
-
$2,053 USD
A$3,159 AUD
View
B+
Retailer 10
-
$2,103 USD
View
B
Retailer 11
-
$2,975 USD
View
B
Retailer 12
-
$3,043 USD
View
B
Retailer 13
-
$3,319 USD
View
Most Expensive
B
MOH London
LG833631311 · Nov 1
$3,592 USD
£2,828 GBP
View
13 more retailers have this diamond
Prices start from $1,038 USDSave up to $2,554 USD

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
4.09ct Cushion
$1,038 USD