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Round|Lab Grown|IGI

4.08ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG788619654

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788619654

Diamond specifications and retailer prices

From £411 GBP
$551 USD
As of October 29, 2026
Save £2,018 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,429 GBP at With Clarity · As of October 31, 2026
View at With Clarity

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 LG788619654 or 788619654. Listed at 21 retailers as of October 29, 2026, with prices from £411 to £2,429, a £2,018 spread on the same certified stone. With Clarity lists it at £2,429. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788619654
Dimensions10.27 × 10.33 × 6.23 mm
L/W Ratio1.01
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 mm10.33 mm4.08 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788619654
Side View
Table 60.0%Crown 34.8°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.4%

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: £777 GBP|Low: £395 GBP|High: £2,243 GBP|Avg: £986 GBP|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 12£411 GBP
Retailer 3£510 GBP
Retailer 10£612 GBP
Retailer 6£698 GBP
Retailer 1£777 GBP
Retailer 4£787 GBP
Retailer 5£793 GBP
Retailer 9£1,016 GBP
Retailer 7£1,023 GBP
Retailer 11£1,142 GBP
Retailer 2£1,776 GBP
Retailer 8£2,227 GBP

34 data points across 12 retailers

21 retailers£411 GBP to £2,429 GBP

A
Cheapest Retailer
-
£411 GBP
$551 USD
A
Retailer 2
-
£461 GBP
$618 USD
View
Retailer 3
-
£510 GBP
$684 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
£510 GBP
$684 USD
View
A
Retailer 5
-
£612 GBP
$820 USD
View
A
Retailer 6
-
£698 GBP
View
A
Retailer 7
-
£749 GBP
$1,003 USD
View
A
Retailer 8
-
£777 GBP
€991 EUR
View
B+
Retailer 9
-
£787 GBP
$1,055 USD
View
A
Retailer 10
-
£793 GBP
View
A
Retailer 11
-
£1,016 GBP
ZAR 21,984 ZAR
View
B+
Retailer 12
-
£1,023 GBP
A$2,108 AUD
View
B+
Retailer 13
-
£1,142 GBP
$1,530 USD
View
B+
Retailer 14
-
£1,191 GBP
$1,596 USD
View
B+
Retailer 15
-
£1,343 GBP
$1,799 USD
View
B
Retailer 16
-
£1,643 GBP
$2,202 USD
View
B
Retailer 17
-
£1,656 GBP
$2,219 USD
View
B
Retailer 18
-
£1,776 GBP
$2,379 USD
View
Retailer 19
-
£2,151 GBP
A$4,433 AUD
View
Price last confirmed 120 days ago
B
Retailer 20
-
£2,227 GBP
View
Most Expensive
B
With Clarity
788619654 · Oct 31
£2,429 GBP
$3,255 USD
View
20 more retailers have this diamond
Prices start from £411 GBPSave up to £2,018 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
£411 GBP