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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 €542 EUR
£477 GBP
As of October 27, 2026
Save €4,014 EUR (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €4,556 EUR 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 €542 to €4,556, a €4,014 spread on the same certified stone. Brilliant Earth lists it at €4,556. 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

How it works →
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: €4,556 EUR|Low: €541 EUR|High: €5,200 EUR|Avg: €1,750 EUR|-12.4%
Brilliant Earth
Retailer 2
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Retailer 21
October 31, 2026
Retailer 19€542 EUR
Retailer 11€584 EUR
Retailer 16€676 EUR
Retailer 18€747 EUR
Retailer 2€902 EUR
Retailer 5€930 EUR
Retailer 7€996 EUR
Retailer 20€1,006 EUR
Retailer 3€1,278 EUR
Retailer 13€1,388 EUR
Retailer 6€1,436 EUR
Retailer 4€1,882 EUR
Retailer 15€1,963 EUR
Retailer 8€2,063 EUR
Retailer 9€2,067 EUR
Retailer 10€2,097 EUR
Retailer 12€2,720 EUR
Retailer 17€2,727 EUR
Retailer 14€2,761 EUR
Retailer 21€2,816 EUR
Brilliant Earth€4,556 EUR

30 data points across 21 retailers

20 retailers€542 EUR to €4,556 EUR

A
Cheapest Retailer
-
€542 EUR
£477 GBP
A
Retailer 2
-
€676 EUR
HK$5,900 HKD
View
Retailer 3
-
€747 EUR
$835 USD
View
Price last confirmed 5 days ago
A
Retailer 4
-
€902 EUR
View
A
Retailer 5
-
€930 EUR
$1,039 USD
View
B+
Retailer 6
-
€996 EUR
$1,113 USD
View
A
Retailer 7
-
€1,006 EUR
£885 GBP
View
Retailer 8
-
€1,278 EUR
ZAR 23,060 ZAR
View
Price last confirmed 9 days ago
B+
Retailer 9
-
€1,388 EUR
$1,551 USD
View
A
Retailer 10
-
€1,436 EUR
$1,604 USD
View
Retailer 11
-
€1,882 EUR
£1,656 GBP
View
Price last confirmed 7 days ago
B+
Retailer 12
-
€1,963 EUR
SGD 2,963 SGD
View
Retailer 13
-
€2,063 EUR
$2,305 USD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
€2,067 EUR
$2,309 USD
View
B+
Retailer 15
-
€2,097 EUR
$2,343 USD
View
Retailer 16
-
€2,720 EUR
A$4,675 AUD
View
Price last confirmed 25 days ago
B
Retailer 17
-
€2,727 EUR
$3,047 USD
View
Retailer 18
-
€2,761 EUR
$3,085 USD
View
Price last confirmed 18 days ago
B
Retailer 19
-
€2,816 EUR
£2,477 GBP
View
Most Expensive
B
Brilliant Earth
21808374A · Oct 31
€4,556 EUR
$5,090 USD
View
19 more retailers have this diamond
Prices start from €542 EURSave up to €4,014 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
€542 EUR