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Oval|Lab Grown|IGI

4.03ct G SI1 Oval Lab Grown Diamond

EX • G/SI1 • IGI LG630457984

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG630457984

Diamond specifications and retailer prices

From £403 GBP
$540 USD
As of October 25, 2026
Save £1,634 GBP (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,037 GBP at Brilliant Earth · As of October 29, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG630457984 or 630457984. Listed at 17 retailers as of October 25, 2026, with prices from £403 to £2,037, a £1,634 spread on the same certified stone. Brilliant Earth lists it at £2,037. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG630457984
Dimensions13.26 × 8.99 × 5.56 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
13.26 mm8.99 mm4.03 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG630457984
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 25
Current: £2,037 GBP|Low: £383 GBP|High: £2,105 GBP|Avg: £957 GBP|-3.2%
Brilliant Earth
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 11£383 GBP
Retailer 8£403 GBP
Retailer 6£511 GBP
Retailer 12£633 GBP
Retailer 2£638 GBP
Retailer 5£666 GBP
Retailer 3£713 GBP
Retailer 4£996 GBP
Retailer 9£1,131 GBP
Retailer 7£1,482 GBP
Retailer 10£1,500 GBP
Brilliant Earth£2,037 GBP

36 data points across 12 retailers

17 retailers£403 GBP to £2,037 GBP

Retailer 1
-
£325 GBP
$436 USD
Price last confirmed 38 days ago
Retailer 2
-
£364 GBP
$488 USD
View
Price last confirmed 35 days ago
Retailer 3
-
£383 GBP
View
Price last confirmed 14 days ago
Retailer 4
-
£398 GBP
$533 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
£403 GBP
$540 USD
View
Retailer 6
-
£403 GBP
$540 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
£511 GBP
$685 USD
View
B+
Retailer 8
-
£633 GBP
$848 USD
View
A
Retailer 9
-
£638 GBP
€814 EUR
View
A
Retailer 10
-
£666 GBP
View
A
Retailer 11
-
£713 GBP
$955 USD
View
B+
Retailer 12
-
£996 GBP
$1,335 USD
View
B+
Retailer 13
-
£1,131 GBP
$1,515 USD
View
Retailer 14
-
£1,296 GBP
$1,736 USD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
£1,482 GBP
View
Retailer 16
-
£1,500 GBP
$2,010 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
10056868A · Oct 29
£2,037 GBP
$2,730 USD
View
16 more retailers have this diamond
Prices start from £403 GBPSave up to £1,634 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
£403 GBP