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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 €540 EUR
£477 GBP
As of October 27, 2026
Save €3,998 EUR (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €4,538 EUR at Brilliant Earth · As of November 2, 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 €540 to €4,538, a €3,998 spread on the same certified stone. Brilliant Earth lists it at €4,538. 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
Colour
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: €4,538 EUR|Low: €538 EUR|High: €5,180 EUR|Avg: €1,742 EUR|-12.4%
Brilliant Earth
Retailer 2
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Retailer 11
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Retailer 15
Retailer 16
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Retailer 21
November 2, 2026
Retailer 19€540 EUR
Retailer 11€581 EUR
Retailer 16€673 EUR
Retailer 18€744 EUR
Retailer 13€899 EUR
Retailer 5€926 EUR
Retailer 7€992 EUR
Retailer 20€1,002 EUR
Retailer 3€1,273 EUR
Retailer 2€1,398 EUR
Retailer 6€1,430 EUR
Retailer 4€1,875 EUR
Retailer 15€1,955 EUR
Retailer 8€2,055 EUR
Retailer 9€2,059 EUR
Retailer 10€2,089 EUR
Retailer 12€2,709 EUR
Retailer 17€2,717 EUR
Retailer 14€2,751 EUR
Retailer 21€2,805 EUR
Brilliant Earth€4,538 EUR

31 data points across 21 retailers

20 retailers€540 EUR to €4,538 EUR

A
Cheapest Retailer
-
€540 EUR
£477 GBP
A
Retailer 2
-
€673 EUR
HK$5,900 HKD
View
Retailer 3
-
€744 EUR
$835 USD
View
Price last confirmed 5 days ago
A
Retailer 4
-
€899 EUR
View
Retailer 5
-
€926 EUR
$1,039 USD
View
Price last confirmed 7 days ago
Retailer 6
-
€992 EUR
$1,113 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
€1,002 EUR
£885 GBP
View
Retailer 8
-
€1,273 EUR
ZAR 23,060 ZAR
View
Price last confirmed 9 days ago
B+
Retailer 9
-
€1,398 EUR
$1,568 USD
View
A
Retailer 10
-
€1,430 EUR
$1,604 USD
View
Retailer 11
-
€1,875 EUR
£1,656 GBP
View
Price last confirmed 8 days ago
B+
Retailer 12
-
€1,955 EUR
SGD 2,963 SGD
View
Retailer 13
-
€2,055 EUR
$2,305 USD
View
Price last confirmed 8 days ago
Retailer 14
-
€2,059 EUR
$2,309 USD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
€2,089 EUR
$2,343 USD
View
Retailer 16
-
€2,709 EUR
A$4,675 AUD
View
Price last confirmed 25 days ago
B
Retailer 17
-
€2,717 EUR
$3,047 USD
View
Retailer 18
-
€2,751 EUR
$3,085 USD
View
Price last confirmed 19 days ago
B
Retailer 19
-
€2,805 EUR
£2,477 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
Brilliant Earth
21808374A · Nov 2
€4,538 EUR
$5,090 USD
View
19 more retailers have this diamond
Prices start from €540 EURSave up to €3,998 EUR

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
€540 EUR