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Radiant|Lab Grown|IGI

5.05ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG839689320

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

Certificate IGI LG839689320

Diamond specifications and retailer prices

From $1,922 AUD
$1,350 USD
As of October 30, 2026
Save $2,724 AUD (59%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $5,058 AUD at MOH London · As of October 19, 2026
View at MOH London

About this 5.05ct lab-grown radiant diamond

This 5.05ct 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 LG839689320 or 839689320. Listed at 5 retailers as of October 30, 2026, with a 142% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle30.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839689320
Dimensions9.29 × 8.96 × 6.30 mm
L/W Ratio1.04
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.29 mm8.96 mm5.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839689320
Side View
Table 67.0%Crown 40.4°Girdle: THK-VTKPavilion 30.6°Culet: NoneDepth 70.3%

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: Oct 30
Current: $5,058 AUD|Low: $1,342 AUD|High: $5,091 AUD|Avg: $3,309 AUD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 19, 2026
Retailer 3$1,342 AUD
Retailer 2$1,922 AUD
Retailer 5$3,257 AUD
Retailer 4$4,645 AUD
MOH London$5,058 AUD

9 data points across 5 retailers

5 retailers$1,922 AUD to $4,645 AUD

Retailer 1
-
$1,342 AUD
$943 USD
Price last confirmed 17 days ago
B+
Retailer 2
-
$1,922 AUD
$1,350 USD
View
B
Retailer 3
-
$3,257 AUD
$2,288 USD
View
B
Retailer 4
-
$4,645 AUD
$3,263 USD
View
Most Expensive
MOH London
LG839689320 · Oct 19
$5,058 AUD
£2,798 GBP
View
Price last confirmed 11 days ago
4 more retailers have this diamond
Prices start from $1,922 AUDSave up to $2,724 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+
5.05ct Radiant
$1,922 AUD