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Radiant|Lab Grown|IGI

3.08ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG773658205

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

Certificate IGI LG773658205

Diamond specifications and retailer prices

From £303 GBP
As of November 6, 2026
Save £2,274 GBP (88%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,578 GBP at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 3.08ct lab-grown radiant diamond

This 3.08ct 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 LG773658205 or 773658205. Listed at 3 retailers as of November 6, 2026, with prices from £303 to £2,578, a £2,274 spread on the same certified stone. Brilliant Earth lists it at £2,578. 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

3.08
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773658205
Dimensions10.42 × 7.22 × 4.90 mm
L/W Ratio1.44
Culet sizePointed
Top View
10.42 mm7.22 mm3.08 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773658205
Side View
Table 65.0%Crown 42.4°Girdle: MediumPavilion 35.5°Culet: NoneDepth 67.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £2,578 GBP|Low: £165 GBP|High: £2,645 GBP|Avg: £848 GBP|-1.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8£165 GBP
Retailer 5£295 GBP
Retailer 3£303 GBP
Retailer 7£477 GBP
Retailer 4£525 GBP
Retailer 2£626 GBP
Retailer 6£750 GBP
Retailer 9£803 GBP
Retailer 10£1,806 GBP
Brilliant Earth£2,578 GBP

25 data points across 10 retailers

3 retailers£303 GBP to £2,578 GBP

A
Cheapest Retailer
-
£303 GBP
Final sale: no returns
A
Retailer 2
-
£626 GBP
View
Most Expensive
B
Brilliant Earth
19612241A · Nov 6
£2,578 GBP
$3,450 USD
View
2 more retailers have this diamond
Prices start from £303 GBPSave up to £2,274 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
3.08ct Radiant
£303 GBP