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Oval|Lab Grown|IGI

4.78ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG544278536

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG544278536

Diamond specifications and retailer prices

From £2,605 GBP
$3,490 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: £2,605 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 4.78ct lab-grown oval diamond

This 4.78ct 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 LG544278536 or 544278536. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

4.78
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544278536
Dimensions13.72 × 9.44 × 5.94 mm
L/W Ratio1.45
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
13.72 mm9.44 mm4.78 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG544278536
Side View
Table 58.5%Crown 35.3°Girdle: MED-THKPavilion 41°Culet: NoneDepth 62.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: £2,605 GBP|Low: £657 GBP|High: £5,112 GBP|Avg: £1,779 GBP|-25.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
July 21, 2026
Retailer 5£668 GBP
Retailer 3£755 GBP
Retailer 8£833 GBP
Retailer 7£1,039 GBP
Retailer 9£1,091 GBP
Retailer 6£1,420 GBP
Retailer 2£1,646 GBP
Retailer 10£2,006 GBP
Brilliant Earth£2,605 GBP
Retailer 4£4,411 GBP

40 data points across 10 retailers

1 retailer

B
Brilliant Earth
15270720Y · Oct 29
£2,605 GBP
$3,490 USD
View

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B
4.78ct Oval
£2,605 GBP