Cushion|Lab Grown|IGI

4.09ct F VS1 Cushion Lab Grown Diamond

VG • F/VS1 • IGI LG840612367

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840612367

Diamond specifications and retailer prices

From $606 USD
£477 GBP
As of October 27, 2026
Save $4,484 USD (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,090 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 very-good cut grade and certified by IGI LG840612367 or 840612367. Listed at 20 retailers as of October 27, 2026, with prices from $606 to $5,090, a $4,484 spread on the same certified stone. Brilliant Earth lists it at $5,090. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.09
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840612367
Dimensions11.25 × 7.96 × 5.38 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.25 mm7.96 mm4.09 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840612367
Side View
Table 63.0%Crown 34.8°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 67.6%

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 27
Current: $5,090 USD|Low: $604 USD|High: $5,810 USD|Avg: $1,955 USD|-12.4%
Brilliant Earth
Retailer 2
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Retailer 21
October 31, 2026
Retailer 19$606 USD
Retailer 11$652 USD
Retailer 16$755 USD
Retailer 18$835 USD
Retailer 2$1,008 USD
Retailer 5$1,039 USD
Retailer 7$1,113 USD
Retailer 20$1,124 USD
Retailer 3$1,427 USD
Retailer 13$1,551 USD
Retailer 6$1,604 USD
Retailer 4$2,103 USD
Retailer 15$2,193 USD
Retailer 8$2,305 USD
Retailer 9$2,309 USD
Retailer 10$2,343 USD
Retailer 12$3,039 USD
Retailer 17$3,047 USD
Retailer 14$3,085 USD
Retailer 21$3,146 USD
Brilliant Earth$5,090 USD

30 data points across 21 retailers

20 retailers$606 USD to $5,090 USD

A
Cheapest Retailer
-
$606 USD
£477 GBP
A
Retailer 2
-
$755 USD
HK$5,900 HKD
View
A
Retailer 3
-
$835 USD
View
A
Retailer 4
-
$1,008 USD
€960 EUR
View
A
Retailer 5
-
$1,039 USD
View
B+
Retailer 6
-
$1,113 USD
View
A
Retailer 7
-
$1,124 USD
£885 GBP
View
Retailer 8
-
$1,427 USD
ZAR 23,060 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$1,551 USD
View
A
Retailer 10
-
$1,604 USD
View
Retailer 11
-
$2,103 USD
£1,656 GBP
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$2,193 USD
SGD 2,963 SGD
View
Retailer 13
-
$2,305 USD
View
Price last confirmed 7 days ago
B+
Retailer 14
-
$2,309 USD
View
B+
Retailer 15
-
$2,343 USD
View
Retailer 16
-
$3,039 USD
A$4,675 AUD
View
Price last confirmed 24 days ago
B
Retailer 17
-
$3,047 USD
View
Retailer 18
-
$3,085 USD
View
Price last confirmed 18 days ago
B
Retailer 19
-
$3,146 USD
£2,477 GBP
View
Most Expensive
B
Brilliant Earth
21808374A · Oct 31
$5,090 USD
View
19 more retailers have this diamond
Prices start from $606 USDSave up to $4,484 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
$606 USD