Oval|Lab Grown|IGI

4.03ct F SI1 Oval Lab Grown Diamond

EX • F/SI1 • IGI LG823627194

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG823627194

Diamond specifications and retailer prices

From £459 GBP
HK$4,800 HKD
As of October 27, 2026
Save £1,766 GBP (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,224 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.03ct lab-grown oval diamond

This 4.03ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG823627194 or 823627194. Listed at 16 retailers as of October 27, 2026, with prices from £459 to £2,224, a £1,766 spread on the same certified stone. Brilliant Earth lists it at £2,224. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.03
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823627194
Dimensions13.08 × 8.82 × 5.41 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.08 mm8.82 mm4.03 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823627194
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: £2,224 GBP|Low: £359 GBP|High: £2,291 GBP|Avg: £1,044 GBP|-2.9%
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
October 29, 2026
Retailer 6£359 GBP
Retailer 3£374 GBP
Retailer 11£627 GBP
Retailer 10£628 GBP
Retailer 13£650 GBP
Retailer 7£680 GBP
Retailer 4£861 GBP
Retailer 2£930 GBP
Retailer 12£998 GBP
Retailer 5£1,315 GBP
Retailer 8£1,531 GBP
Retailer 9£1,620 GBP
Brilliant Earth£2,224 GBP

28 data points across 13 retailers

16 retailers£459 GBP to £2,224 GBP

Retailer 1
-
£321 GBP
$430 USD
Price last confirmed 28 days ago
Retailer 2
-
£359 GBP
View
Price last confirmed 12 days ago
Retailer 3
-
£379 GBP
$508 USD
View
Price last confirmed 36 days ago
Retailer 4
-
£414 GBP
$555 USD
View
Price last confirmed 33 days ago
A
Retailer 5
-
£459 GBP
HK$4,800 HKD
View
Retailer 6
-
£627 GBP
$840 USD
View
Price last confirmed 13 days ago
Retailer 7
-
£650 GBP
$871 USD
View
Price last confirmed 14 days ago
Retailer 8
-
£680 GBP
View
Price last confirmed 13 days ago
Retailer 9
-
£861 GBP
$1,153 USD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
£930 GBP
A$1,918 AUD
View
Retailer 11
-
£998 GBP
$1,337 USD
View
Price last confirmed 13 days ago
Retailer 12
-
£1,315 GBP
SGD 2,381 SGD
View
Price last confirmed 13 days ago
Retailer 13
-
£1,332 GBP
$1,785 USD
View
Price last confirmed 28 days ago
Retailer 14
-
£1,531 GBP
View
Price last confirmed 13 days ago
Retailer 15
-
£1,620 GBP
$2,170 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
20860491A · Oct 31
£2,224 GBP
$2,980 USD
View
15 more retailers have this diamond
Prices start from £459 GBPSave up to £1,766 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
4.03ct Oval
£459 GBP