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Radiant|Lab Grown|IGI

5.06ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG826673845

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

Certificate IGI LG826673845

Diamond specifications and retailer prices

From £621 GBP
HK$6,500 HKD
As of October 30, 2026
Save £2,409 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,030 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 5.06ct lab-grown radiant diamond

This 5.06ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG826673845 or 826673845. Listed at 10 retailers as of October 30, 2026, with prices from £621 to £3,030, a £2,409 spread on the same certified stone. Brilliant Earth lists it at £3,030. 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

5.06
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.4°
Pavilion angle32.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826673845
Dimensions11.98 × 8.54 × 5.43 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.98 mm8.54 mm5.06 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826673845
Side View
Table 67.0%Crown 46.4°Girdle: Slightly ThickPavilion 32.2°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,030 GBP|Low: £621 GBP|High: £3,545 GBP|Avg: £1,653 GBP|-14.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8£621 GBP
Retailer 4£826 GBP
Retailer 7£874 GBP
Retailer 2£888 GBP
Retailer 6£1,239 GBP
Retailer 9£1,537 GBP
Retailer 10£1,801 GBP
Retailer 5£2,205 GBP
Retailer 3£2,479 GBP
Brilliant Earth£3,030 GBP

39 data points across 10 retailers

10 retailers£621 GBP to £3,030 GBP

A
Cheapest Retailer
-
£621 GBP
HK$6,500 HKD
Retailer 2
-
£826 GBP
€1,054 EUR
View
Price last confirmed 7 days ago
B+
Retailer 3
-
£874 GBP
$1,171 USD
View
A
Retailer 4
-
£888 GBP
View
B
Retailer 5
-
£1,239 GBP
$1,660 USD
View
B
Retailer 6
-
£1,537 GBP
$2,060 USD
View
B
Retailer 7
-
£1,801 GBP
SGD 3,261 SGD
View
B
Retailer 8
-
£2,205 GBP
$2,955 USD
View
B
Retailer 9
-
£2,479 GBP
View
Most Expensive
B
Brilliant Earth
21013578A · Oct 30
£3,030 GBP
$4,060 USD
View
9 more retailers have this diamond
Prices start from £621 GBPSave up to £2,409 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
5.06ct Radiant
£621 GBP