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Oval|Lab Grown|IGI

1.30ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG704573278

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG704573278

Diamond specifications and retailer prices

From £649 GBP
$870 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: £649 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 1.3ct lab-grown oval diamond

This 1.3ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG704573278 or 704573278. 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

1.30
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG704573278
Dimensions8.65 × 6.34 × 3.86 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Top View
8.65 mm6.34 mm1.30 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG704573278
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.9%

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: £447 GBP|Low: £99 GBP|High: £572 GBP|Avg: £336 GBP|-21.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
May 29, 2026
Retailer 5£259 GBP
Retailer 2£265 GBP
Retailer 3£350 GBP
Retailer 4£382 GBP
Retailer 1£447 GBP

67 data points across 5 retailers

1 retailer

B
Brilliant Earth
19547524A · Oct 29
£649 GBP
$870 USD
View

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B
1.30ct Oval
£649 GBP