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Oval|Lab Grown|IGI

4.28ct E FL Oval Lab Grown Diamond

EX • E/FL • IGI LG814620481

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG814620481

Diamond specifications and retailer prices

From £3,591 GBP
$4,811 USD
As of October 29, 2026
Save £17,387 GBP (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £20,978 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.28ct lab-grown oval diamond

This 4.28ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG814620481 or 814620481. Listed at 23 retailers as of October 29, 2026, with prices from £3,591 to £20,978, a £17,387 spread on the same certified stone. With Clarity lists it at £20,978. 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

4.28
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814620481
Dimensions13.61 × 9.30 × 5.51 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.61 mm9.30 mm4.28 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG814620481
Side View
Table 61.0%Crown 34.3°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.2%

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: £8,807 GBP|Low: £3,447 GBP|High: £12,576 GBP|Avg: £6,461 GBP|-30.0%
Retailer 1
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
Retailer 17
Retailer 18
October 30, 2026
Retailer 18£3,591 GBP
Retailer 6£3,763 GBP
Retailer 13£4,020 GBP
Retailer 4£4,165 GBP
Retailer 17£4,187 GBP
Retailer 16£4,323 GBP
Retailer 9£5,168 GBP
Retailer 5£5,205 GBP
Retailer 11£5,305 GBP
Retailer 7£5,892 GBP
Retailer 15£6,460 GBP
Retailer 10£6,640 GBP
Retailer 3£7,001 GBP
Retailer 14£8,521 GBP
Retailer 1£8,807 GBP
Retailer 12£8,865 GBP
Retailer 2£9,322 GBP
Retailer 8£10,654 GBP

42 data points across 18 retailers

23 retailers£3,591 GBP to £20,978 GBP

A
Cheapest Retailer
-
£3,591 GBP
$4,811 USD
A
Retailer 2
-
£3,763 GBP
$5,042 USD
View
A
Retailer 3
-
£3,903 GBP
CA$7,263 CAD
View
A
Retailer 4
-
£4,020 GBP
$5,387 USD
View
Final sale: no returns
Retailer 5
-
£4,165 GBP
$5,581 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
£4,165 GBP
$5,581 USD
View
A
Retailer 7
-
£4,187 GBP
$5,610 USD
View
A
Retailer 8
-
£4,323 GBP
$5,793 USD
View
B+
Retailer 9
-
£5,168 GBP
$6,925 USD
View
B+
Retailer 10
-
£5,205 GBP
$6,974 USD
View
B+
Retailer 11
-
£5,305 GBP
View
B+
Retailer 12
-
£5,892 GBP
View
B+
Retailer 13
-
£7,001 GBP
$9,380 USD
View
B+
Retailer 14
-
£8,521 GBP
View
B+
Retailer 15
-
£8,807 GBP
$11,800 USD
View
B+
Retailer 16
-
£8,865 GBP
ZAR 191,893 ZAR
View
B
Retailer 17
-
£9,322 GBP
$12,491 USD
View
B
Retailer 18
-
£10,654 GBP
$14,275 USD
View
B
Retailer 19
-
£11,142 GBP
$14,929 USD
View
B
Retailer 20
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£11,579 GBP
$15,514 USD
View
B
Retailer 21
-
£11,946 GBP
$16,006 USD
View
B
Retailer 22
-
£14,926 GBP
$20,000 USD
View
Most Expensive
B
With Clarity
814620481 · Oct 31
£20,978 GBP
$28,108 USD
View
22 more retailers have this diamond
Prices start from £3,591 GBPSave up to £17,387 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
4.28ct Oval
£3,591 GBP