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Round|Lab Grown|IGI

4.09ct F VVS2 Round Lab Grown Diamond

ID • F/VVS2 • IGI LG784618741

Shape and cutting style on the report: Round brilliant

Certificate IGI LG784618741

Diamond specifications and retailer prices

From £490 GBP
$657 USD
As of October 29, 2026
Save £3,868 GBP (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £6,971 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.09ct lab-grown round diamond

This 4.09ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG784618741 or 784618741. Listed at 22 retailers as of October 29, 2026, with a 789% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784618741
Dimensions10.33 × 10.37 × 6.18 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.33 mm10.37 mm4.09 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784618741
Side View
Table 59.0%Crown 33.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £6,971 GBP|Low: £471 GBP|High: £7,187 GBP|Avg: £1,799 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
Retailer 18
November 1, 2026
Retailer 4£490 GBP
Retailer 8£534 GBP
Retailer 5£569 GBP
Retailer 13£702 GBP
Retailer 3£804 GBP
Retailer 7£884 GBP
Retailer 2£996 GBP
Retailer 12£1,337 GBP
Retailer 11£1,346 GBP
Retailer 18£1,454 GBP
Retailer 10£1,518 GBP
Retailer 9£1,766 GBP
Retailer 6£1,940 GBP
Retailer 14£2,470 GBP
Retailer 17£2,698 GBP
Retailer 15£3,541 GBP
Retailer 16£4,087 GBP
Brilliant Earth£6,971 GBP

45 data points across 18 retailers

22 retailers£490 GBP to £4,359 GBP

A
Cheapest Retailer
-
£490 GBP
$657 USD
A
Retailer 2
-
£534 GBP
$715 USD
View
A
Retailer 3
-
£569 GBP
$763 USD
View
Retailer 4
-
£569 GBP
$763 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
£702 GBP
$940 USD
View
B+
Retailer 6
-
£804 GBP
$1,077 USD
View
A
Retailer 7
-
£884 GBP
$1,184 USD
View
A
Retailer 8
-
£996 GBP
View
A
Retailer 9
-
£1,011 GBP
$1,355 USD
View
B+
Retailer 10
-
£1,337 GBP
ZAR 28,940 ZAR
View
B+
Retailer 11
-
£1,346 GBP
A$2,775 AUD
View
B+
Retailer 12
-
£1,454 GBP
$1,948 USD
View
B+
Retailer 13
-
£1,518 GBP
$2,034 USD
View
B+
Retailer 14
-
£1,766 GBP
$2,366 USD
View
B
Retailer 15
-
£1,940 GBP
$2,600 USD
View
B
Retailer 16
-
£2,248 GBP
$3,013 USD
View
B
Retailer 17
-
£2,470 GBP
View
Retailer 18
-
£2,698 GBP
$3,615 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
£3,541 GBP
$4,745 USD
View
B
Retailer 20
-
£4,087 GBP
$5,476 USD
View
B
Retailer 21
-
£4,359 GBP
$5,840 USD
View
Most Expensive
Brilliant Earth
18243705A · Oct 31
£6,971 GBP
$9,340 USD
View
Price under review
21 more retailers have this diamond
Prices start from £490 GBPSave up to £3,868 GBP

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 Round
£490 GBP