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Round|Lab Grown|IGI

4.09ct F VVS2 Round Lab Grown Diamond

ID • F/VVS2 • IGI LG729573363

Shape and cutting style on the report: Round brilliant

Certificate IGI LG729573363

Diamond specifications and retailer prices

From £437 GBP
$585 USD
As of October 29, 2026
Save £3,437 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 22, 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 LG729573363 or 729573363. Listed at 22 retailers as of October 29, 2026, with a 787% 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 angle34.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729573363
Dimensions10.27 × 10.32 × 6.32 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
10.27 mm10.32 mm4.09 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729573363
Side View
Table 58.0%Crown 34.3°Girdle: MediumPavilion 41°Culet: NoneDepth 61.4%

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: £435 GBP|High: £6,971 GBP|Avg: £1,489 GBP
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 11£437 GBP
Retailer 5£489 GBP
Retailer 21£541 GBP
Retailer 19£638 GBP
Retailer 15£750 GBP
Retailer 6£832 GBP
Retailer 7£832 GBP
Retailer 2£890 GBP
Retailer 16£894 GBP
Retailer 3£1,000 GBP
Retailer 18£1,189 GBP
Retailer 13£1,197 GBP
Retailer 20£1,343 GBP
Retailer 4£1,571 GBP
Retailer 8£1,727 GBP
Retailer 12£2,014 GBP
Retailer 10£2,036 GBP
Retailer 17£2,366 GBP
Retailer 14£2,698 GBP
Retailer 9£3,873 GBP
Brilliant Earth£6,971 GBP

33 data points across 21 retailers

22 retailers£437 GBP to £3,873 GBP

A
Cheapest Retailer
-
£437 GBP
$585 USD
A
Retailer 2
-
£489 GBP
$655 USD
View
A
Retailer 3
-
£541 GBP
$725 USD
View
Retailer 4
-
£562 GBP
$753 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
£638 GBP
$855 USD
View
A
Retailer 6
-
£750 GBP
View
B+
Retailer 7
-
£832 GBP
$1,115 USD
View
A
Retailer 8
-
£832 GBP
$1,115 USD
View
A
Retailer 9
-
£890 GBP
View
A
Retailer 10
-
£894 GBP
€1,141 EUR
View
A
Retailer 11
-
£1,000 GBP
$1,340 USD
View
B+
Retailer 12
-
£1,189 GBP
ZAR 25,739 ZAR
View
B+
Retailer 13
-
£1,197 GBP
A$2,468 AUD
View
B+
Retailer 14
-
£1,343 GBP
$1,799 USD
View
B+
Retailer 15
-
£1,571 GBP
$2,105 USD
View
B+
Retailer 16
-
£1,727 GBP
$2,314 USD
View
B
Retailer 17
-
£2,014 GBP
$2,699 USD
View
B
Retailer 18
-
£2,036 GBP
SGD 3,686 SGD
View
B+
Retailer 19
-
£2,366 GBP
View
Retailer 20
-
£2,698 GBP
$3,615 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
£3,873 GBP
$5,190 USD
View
Most Expensive
Brilliant Earth
21068687Y · Oct 22
£6,971 GBP
$9,340 USD
View
Price under review
21 more retailers have this diamond
Prices start from £437 GBPSave up to £3,437 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
£437 GBP