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Oval|Lab Grown|IGI

4.28ct H VS1 Oval Lab Grown Diamond

GD • H/VS1 • IGI LG574320838

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG574320838

Diamond specifications and retailer prices

From £582 GBP
$780 USD
As of October 31, 2026
Save £1,724 GBP (75%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,306 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 4.28ct lab-grown oval diamond

This 4.28ct lab-grown oval sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG574320838 or 574320838. Listed at 15 retailers as of October 31, 2026, with prices from £582 to £2,306, a £1,724 spread on the same certified stone. Brilliant Earth lists it at £2,306. 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

4.28
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG574320838
Dimensions13.04 × 9.22 × 5.77 mm
L/W Ratio1.41
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
13.04 mm9.22 mm4.28 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG574320838
Side View
Table 60.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £2,306 GBP|Low: £290 GBP|High: £2,597 GBP|Avg: £1,087 GBP|-11.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 4£402 GBP
Retailer 5£444 GBP
Retailer 7£567 GBP
Retailer 8£582 GBP
Retailer 3£744 GBP
Retailer 2£751 GBP
Retailer 14£783 GBP
Retailer 10£956 GBP
Retailer 9£962 GBP
Retailer 13£1,025 GBP
Retailer 12£1,240 GBP
Retailer 15£1,562 GBP
Retailer 11£2,008 GBP
Retailer 6£2,126 GBP
Brilliant Earth£2,306 GBP

32 data points across 15 retailers

15 retailers£582 GBP to £2,306 GBP

Retailer 1
-
£358 GBP
$480 USD
Price last confirmed 38 days ago
Retailer 2
-
£402 GBP
$538 USD
View
Price last confirmed 36 days ago
Retailer 3
-
£439 GBP
$588 USD
View
Price last confirmed 34 days ago
B+
Retailer 4
-
£582 GBP
$780 USD
View
B
Retailer 5
-
£744 GBP
$997 USD
View
B+
Retailer 6
-
£751 GBP
€958 EUR
View
B+
Retailer 7
-
£783 GBP
$1,049 USD
View
B+
Retailer 8
-
£956 GBP
ZAR 20,689 ZAR
View
B+
Retailer 9
-
£962 GBP
A$1,984 AUD
View
B+
Retailer 10
-
£1,025 GBP
$1,373 USD
View
B
Retailer 11
-
£1,240 GBP
$1,661 USD
View
Retailer 12
-
£1,428 GBP
$1,914 USD
View
Price last confirmed 34 days ago
B
Retailer 13
-
£1,562 GBP
$2,093 USD
View
C
Retailer 14
-
£2,008 GBP
View
Most Expensive
B
Brilliant Earth
7622980A · Oct 31
£2,306 GBP
$3,090 USD
View
14 more retailers have this diamond
Prices start from £582 GBPSave up to £1,724 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.

B+
4.28ct Oval
£582 GBP