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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 $1,648 AUD
$1,155 USD
As of November 2, 2026
Save $3,598 AUD (69%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,246 AUD 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 $1,648 to $5,246, a $3,598 spread on the same certified stone. MOH London lists it at $5,246. 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: $5,246 AUD|Low: $965 AUD|High: $5,310 AUD|Avg: $2,634 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 5$1,313 AUD
Retailer 6$1,351 AUD
Retailer 8$1,586 AUD
Retailer 2$1,648 AUD
Retailer 4$2,250 AUD
Retailer 9$2,375 AUD
Retailer 3$3,218 AUD
Retailer 7$3,406 AUD
MOH London$5,246 AUD

7 data points across 9 retailers

6 retailers$1,648 AUD to $5,246 AUD

Retailer 1
-
$1,159 AUD
$812 USD
Price last confirmed 31 days ago
B+
Retailer 2
-
$1,648 AUD
$1,155 USD
View
B
Retailer 3
-
$2,250 AUD
$1,577 USD
View
B
Retailer 4
-
$3,218 AUD
$2,255 USD
View
Retailer 5
-
$3,935 AUD
$2,758 USD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
LG650411451 · Nov 1
$5,246 AUD
£2,895 GBP
View
5 more retailers have this diamond
Prices start from $1,648 AUDSave up to $3,598 AUD

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
$1,648 AUD