Oval|Lab Grown|IGI

4.00ct F VS2 Oval Lab Grown Diamond

VG • F/VS2 • IGI LG786666386

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG786666386

Diamond specifications and retailer prices

From £431 GBP
$578 USD
As of October 27, 2026
Save £3,397 GBP (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,941 GBP at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 4ct lab-grown oval diamond

This 4ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG786666386 or 786666386. Listed at 15 retailers as of October 27, 2026, with a 788% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.00
Carat
F
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786666386
Dimensions13.04 × 9.07 × 5.47 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.04 mm9.07 mm4.00 ctF / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786666386
Side View
Table 62.0%Crown 34.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.3%

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 27
Current: £4,941 GBP|Low: £435 GBP|High: £5,366 GBP|Avg: £1,695 GBP|-7.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 29, 2026
Retailer 3£435 GBP
Retailer 16£586 GBP
Retailer 9£647 GBP
Retailer 6£705 GBP
Retailer 10£708 GBP
Retailer 14£862 GBP
Retailer 5£872 GBP
Retailer 7£986 GBP
Retailer 12£1,327 GBP
Retailer 15£1,340 GBP
Retailer 4£1,980 GBP
Retailer 8£2,149 GBP
Retailer 13£2,361 GBP
Retailer 2£2,714 GBP
Retailer 11£3,829 GBP
Brilliant Earth£4,941 GBP

20 data points across 16 retailers

15 retailers£431 GBP to £3,829 GBP

A
Cheapest Retailer
-
£431 GBP
$578 USD
Retailer 2
-
£435 GBP
$583 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
£586 GBP
$785 USD
View
A
Retailer 4
-
£647 GBP
$867 USD
View
Retailer 5
-
£705 GBP
$944 USD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
£708 GBP
$948 USD
View
B+
Retailer 7
-
£872 GBP
$1,169 USD
View
B+
Retailer 8
-
£1,327 GBP
$1,778 USD
View
Retailer 9
-
£1,340 GBP
$1,795 USD
View
Price last confirmed 9 days ago
Retailer 10
-
£1,567 GBP
$2,100 USD
View
Price last confirmed 13 days ago
Retailer 11
-
£1,980 GBP
A$4,081 AUD
View
Price last confirmed 22 days ago
Retailer 12
-
£2,361 GBP
View
Price last confirmed 10 days ago
B
Retailer 13
-
£2,714 GBP
$3,636 USD
View
B
Retailer 14
-
£3,829 GBP
$5,130 USD
View
Most Expensive
Brilliant Earth
18976747A · Oct 16
£4,941 GBP
$6,620 USD
View
Price last confirmed 15 days ago
14 more retailers have this diamond
Prices start from £431 GBPSave up to £3,397 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
4.00ct Oval
£431 GBP