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Round|Lab Grown|IGI

4.08ct F VS1 Round Lab Grown Diamond

EX • F/VS1 • IGI LG729532712

Shape and cutting style on the report: Round brilliant

Certificate IGI LG729532712

Diamond specifications and retailer prices

From £481 GBP
$644 USD
As of October 29, 2026
Save £4,318 GBP (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,799 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 4.08ct lab-grown round diamond

This 4.08ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG729532712 or 729532712. Listed at 23 retailers as of October 28, 2026, with prices from £481 to £4,799, a £4,318 spread on the same certified stone. Brilliant Earth lists it at £4,799. 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

4.08
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729532712
Dimensions10.43 × 10.39 × 6.17 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
10.43 mm10.39 mm4.08 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729532712
Side View
Table 60.0%Crown 32.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 59.2%

Caratlytics Score

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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: £4,799 GBP|Low: £481 GBP|High: £4,799 GBP|Avg: £1,273 GBP
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 19£481 GBP
Retailer 2£523 GBP
Retailer 21£558 GBP
Retailer 14£650 GBP
Retailer 3£690 GBP
Retailer 17£815 GBP
Retailer 7£816 GBP
Retailer 5£886 GBP
Retailer 18£888 GBP
Retailer 6£910 GBP
Retailer 13£1,117 GBP
Retailer 22£1,187 GBP
Retailer 16£1,195 GBP
Retailer 8£1,214 GBP
Retailer 9£1,568 GBP
Retailer 12£1,729 GBP
Retailer 4£1,762 GBP
Retailer 11£1,879 GBP
Retailer 10£1,924 GBP
Retailer 20£2,362 GBP
Retailer 15£2,414 GBP
Brilliant Earth£4,799 GBP

28 data points across 22 retailers

23 retailers£481 GBP to £4,799 GBP

A
Cheapest Retailer
-
£481 GBP
$644 USD
A
Retailer 2
-
£523 GBP
$701 USD
View
A
Retailer 3
-
£558 GBP
$747 USD
View
Retailer 4
-
£584 GBP
$783 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
£650 GBP
HK$6,800 HKD
View
A
Retailer 6
-
£690 GBP
$925 USD
View
A
Retailer 7
-
£815 GBP
View
A
Retailer 8
-
£816 GBP
$1,094 USD
View
A
Retailer 9
-
£886 GBP
€1,130 EUR
View
A
Retailer 10
-
£888 GBP
View
B+
Retailer 11
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£910 GBP
$1,219 USD
View
B+
Retailer 12
-
£1,117 GBP
$1,496 USD
View
B+
Retailer 13
-
£1,187 GBP
ZAR 25,689 ZAR
View
B+
Retailer 14
-
£1,195 GBP
A$2,463 AUD
View
B+
Retailer 15
-
£1,214 GBP
$1,627 USD
View
B+
Retailer 16
-
£1,568 GBP
$2,101 USD
View
B+
Retailer 17
-
£1,729 GBP
View
B+
Retailer 18
-
£1,762 GBP
$2,361 USD
View
B
Retailer 19
-
£1,879 GBP
SGD 3,403 SGD
View
B
Retailer 20
-
£1,924 GBP
$2,578 USD
View
B
Retailer 21
-
£2,362 GBP
View
Retailer 22
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£2,414 GBP
$3,235 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
21199135A · Oct 28
£4,799 GBP
$6,430 USD
View
22 more retailers have this diamond
Prices start from £481 GBPSave up to £4,318 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
4.08ct Round
£481 GBP