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Radiant|Lab Grown|IGI

3.03ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG673410653

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG673410653

Diamond specifications and retailer prices

From £1,943 GBP
As of November 5, 2026
Save £298 GBP (13%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,241 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.03ct lab-grown radiant diamond

This 3.03ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG673410653 or 673410653. Listed at 2 retailers as of November 5, 2026, with prices from £1,943 to £2,241, a £298 spread on the same certified stone. Brilliant Earth lists it at £2,241. 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

3.03
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.1°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG673410653
Dimensions10.35 × 7.15 × 4.84 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.35 mm7.15 mm3.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG673410653
Side View
Table 66.0%Crown 45.1°Girdle: ThinPavilion 35.9°Culet: NoneDepth 67.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £2,241 GBP|Low: £2,107 GBP|High: £3,691 GBP|Avg: £3,129 GBP|-33.9%
August 13, 2026
Brilliant Earth£2,241 GBP

20 data points across 1 retailer

2 retailers£1,943 GBP to £2,241 GBP

B
Cheapest Retailer
-
£1,943 GBP
Most Expensive
B
Brilliant Earth
13158656B · Nov 6
£2,241 GBP
$3,000 USD
View
1 more retailer has this diamond
Prices start from £1,943 GBPSave up to £298 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
3.03ct Radiant
£1,943 GBP