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Round|Lab Grown|IGI

4.09ct F VVS2 Round Lab Grown Diamond

ID • F/VVS2 • IGI LG788625257

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788625257

Diamond specifications and retailer prices

From £387 GBP
$518 USD
As of October 29, 2026
Save £3,693 GBP (91%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,080 GBP at Frank Darling · As of October 31, 2026
View at Frank Darling

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 LG788625257 or 788625257. Listed at 15 retailers as of October 29, 2026, with prices from £387 to £4,080, a £3,693 spread on the same certified stone. Frank Darling lists it at £4,080. 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 angle33.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788625257
Dimensions10.31 × 10.36 × 6.27 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
10.31 mm10.36 mm4.09 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788625257
Side View
Table 58.0%Crown 33.1°Girdle: MediumPavilion 41°Culet: NoneDepth 60.7%

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: £4,080 GBP|Low: £369 GBP|High: £7,217 GBP|Avg: £1,622 GBP|-0.0%
Frank Darling
Retailer 2
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Retailer 19
October 31, 2026
Retailer 14£387 GBP
Retailer 17£457 GBP
Retailer 4£635 GBP
Retailer 15£648 GBP
Retailer 13£649 GBP
Retailer 8£731 GBP
Retailer 9£771 GBP
Retailer 2£785 GBP
Retailer 12£1,059 GBP
Retailer 10£1,065 GBP
Retailer 16£1,196 GBP
Retailer 3£1,390 GBP
Retailer 11£1,695 GBP
Retailer 5£1,852 GBP
Retailer 18£2,299 GBP
Retailer 6£2,698 GBP
Retailer 19£3,433 GBP
Retailer 7£3,553 GBP
Frank Darling£4,080 GBP

26 data points across 19 retailers

15 retailers£387 GBP to £4,080 GBP

A
Cheapest Retailer
-
£387 GBP
$518 USD
A
Retailer 2
-
£457 GBP
$612 USD
View
Final sale: no returns
A
Retailer 3
-
£635 GBP
$851 USD
View
B+
Retailer 4
-
£648 GBP
$868 USD
View
A
Retailer 5
-
£649 GBP
$870 USD
View
A
Retailer 6
-
£785 GBP
€1,002 EUR
View
A
Retailer 7
-
£1,059 GBP
A$2,184 AUD
View
B+
Retailer 8
-
£1,196 GBP
$1,602 USD
View
B+
Retailer 9
-
£1,390 GBP
$1,863 USD
View
B+
Retailer 10
-
£1,852 GBP
$2,482 USD
View
B+
Retailer 11
-
£2,299 GBP
View
Retailer 12
-
£2,698 GBP
$3,615 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
£3,433 GBP
$4,600 USD
View
B
Retailer 14
-
£3,553 GBP
$4,760 USD
View
Most Expensive
B
Frank Darling
AG-163161GR · Oct 31
£4,080 GBP
$5,467 USD
View
14 more retailers have this diamond
Prices start from £387 GBPSave up to £3,693 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
£387 GBP