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Round|Lab Grown|IGI

4.09ct F VVS2 Round Lab Grown Diamond

EX • F/VVS2 • IGI LG759507525

Shape and cutting style on the report: Round brilliant

Certificate IGI LG759507525

Diamond specifications and retailer prices

From £421 GBP
$564 USD
As of October 29, 2026
Save £1,387 GBP (77%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £7,001 GBP at Brilliant Earth · As of October 23, 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 LG759507525 or 759507525. Listed at 27 retailers as of October 29, 2026, with a 329% 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG759507525
Dimensions10.35 × 10.39 × 6.24 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
10.35 mm10.39 mm4.09 ctF / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG759507525
Side View
Table 61.0%Crown 33.8°Girdle: MediumPavilion 41.3°Culet: NoneDepth 60.2%

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 29
Current: £7,001 GBP|Low: £417 GBP|High: £7,001 GBP|Avg: £1,372 GBP
Brilliant Earth
Retailer 2
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Retailer 22
October 31, 2026
Retailer 11£421 GBP
Retailer 18£471 GBP
Retailer 22£472 GBP
Retailer 6£522 GBP
Retailer 14£522 GBP
Retailer 20£623 GBP
Retailer 5£759 GBP
Retailer 7£804 GBP
Retailer 16£806 GBP
Retailer 13£831 GBP
Retailer 21£1,030 GBP
Retailer 17£1,046 GBP
Retailer 19£1,105 GBP
Retailer 9£1,234 GBP
Retailer 4£1,280 GBP
Retailer 10£1,373 GBP
Retailer 15£1,524 GBP
Retailer 8£1,677 GBP
Retailer 2£1,681 GBP
Retailer 12£1,693 GBP
Retailer 3£2,279 GBP
Brilliant Earth£7,001 GBP

38 data points across 22 retailers

27 retailers£421 GBP to £1,808 GBP

Retailer 1
-
£417 GBP
$559 USD
Price last confirmed 40 days ago
A
Retailer 2
-
£421 GBP
$564 USD
View
A
Retailer 3
-
£471 GBP
$631 USD
View
Final sale: no returns
A
Retailer 4
-
£472 GBP
$632 USD
View
Retailer 5
-
£510 GBP
$684 USD
View
Price last confirmed 40 days ago
A
Retailer 6
-
£522 GBP
$700 USD
View
Retailer 7
-
£522 GBP
$700 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
£623 GBP
$835 USD
View
A
Retailer 9
-
£759 GBP
$1,017 USD
View
B+
Retailer 10
-
£804 GBP
$1,077 USD
View
A
Retailer 11
-
£806 GBP
View
A
Retailer 12
-
£831 GBP
€1,060 EUR
View
Retailer 13
-
£1,030 GBP
ZAR 22,294 ZAR
View
Price last confirmed 7 days ago
A
Retailer 14
-
£1,046 GBP
A$2,157 AUD
View
B+
Retailer 15
-
£1,105 GBP
A$2,278 AUD
View
B+
Retailer 16
-
£1,234 GBP
$1,653 USD
View
B+
Retailer 17
-
£1,280 GBP
$1,715 USD
View
Retailer 18
-
£1,361 GBP
$1,823 USD
View
Price last confirmed 40 days ago
B+
Retailer 19
-
£1,373 GBP
$1,840 USD
View
B+
Retailer 20
-
£1,524 GBP
View
B+
Retailer 21
-
£1,658 GBP
$2,221 USD
View
B+
Retailer 22
-
£1,677 GBP
$2,246 USD
View
B+
Retailer 23
-
£1,681 GBP
$2,253 USD
View
B+
Retailer 24
-
£1,693 GBP
$2,268 USD
View
B
Retailer 25
-
£1,808 GBP
$2,422 USD
View
Retailer 26
-
£2,279 GBP
View
Price last confirmed 10 days ago
Most Expensive
Brilliant Earth
18168978A · Oct 23
£7,001 GBP
$9,380 USD
View
Price under review
26 more retailers have this diamond
Prices start from £421 GBPSave up to £1,387 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
£421 GBP