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Radiant|Lab Grown|IGI

5.11ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG650411451

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

Certificate IGI LG650411451

Diamond specifications and retailer prices

From £861 GBP
$1,155 USD
As of November 2, 2026
Save £1,879 GBP (69%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,740 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 5.11ct lab-grown radiant diamond

This 5.11ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG650411451 or 650411451. Listed at 6 retailers as of November 1, 2026, with prices from £861 to £2,740, a £1,879 spread on the same certified stone. MOH London lists it at £2,740. 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

5.11
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650411451
Dimensions11.64 × 8.71 × 5.66 mm
L/W Ratio1.34
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.64 mm8.71 mm5.11 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650411451
Side View
Table 66.0%Crown 47.1°Girdle: MED-STKPavilion 34.3°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £2,740 GBP|Low: £504 GBP|High: £2,773 GBP|Avg: £1,376 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5£686 GBP
Retailer 6£706 GBP
Retailer 8£828 GBP
Retailer 2£861 GBP
Retailer 4£1,175 GBP
Retailer 9£1,240 GBP
Retailer 3£1,680 GBP
Retailer 7£1,779 GBP
MOH London£2,740 GBP

7 data points across 9 retailers

6 retailers£861 GBP to £2,740 GBP

Retailer 1
-
£605 GBP
$812 USD
Price last confirmed 31 days ago
B+
Retailer 2
-
£861 GBP
$1,155 USD
View
B
Retailer 3
-
£1,175 GBP
$1,577 USD
View
B
Retailer 4
-
£1,680 GBP
$2,255 USD
View
Retailer 5
-
£2,055 GBP
$2,758 USD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
LG650411451 · Nov 1
£2,740 GBP
View
5 more retailers have this diamond
Prices start from £861 GBPSave up to £1,879 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+
5.11ct Radiant
£861 GBP