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Radiant|Lab Grown|IGI

5.03ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG618450557

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

Certificate IGI LG618450557

Diamond specifications and retailer prices

From $710 AUD
$499 USD
As of October 30, 2026
Save $5,255 AUD (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,965 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.03ct lab-grown radiant diamond

This 5.03ct 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 LG618450557 or 618450557. Listed at 16 retailers as of October 30, 2026, with prices from $710 to $5,965, a $5,255 spread on the same certified stone. Brilliant Earth lists it at $5,965. 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

5.03
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618450557
Dimensions12.15 × 8.35 × 5.72 mm
L/W Ratio1.46
Culet sizePointed
Top View
12.15 mm8.35 mm5.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618450557
Side View
Table 65.0%Crown 45°Girdle: MediumPavilion 35.7°Culet: NoneDepth 68.5%

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: $5,965 AUD|Low: $710 AUD|High: $7,218 AUD|Avg: $2,151 AUD|-17.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 15$710 AUD
Retailer 11$796 AUD
Retailer 3$881 AUD
Retailer 5$881 AUD
Retailer 14$927 AUD
Retailer 4$1,331 AUD
Retailer 6$1,370 AUD
Retailer 9$1,417 AUD
Retailer 2$1,455 AUD
Retailer 7$1,519 AUD
Retailer 12$2,275 AUD
Retailer 16$2,319 AUD
Retailer 8$2,813 AUD
Retailer 10$3,699 AUD
Retailer 13$4,178 AUD
Brilliant Earth$5,965 AUD

39 data points across 16 retailers

16 retailers$710 AUD to $5,965 AUD

A
Cheapest Retailer
-
$710 AUD
$499 USD
A
Retailer 2
-
$796 AUD
$559 USD
View
A
Retailer 3
-
$881 AUD
$619 USD
View
Retailer 4
-
$881 AUD
$619 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$927 AUD
£513 GBP
View
Price last confirmed 15 days ago
A
Retailer 6
-
$1,331 AUD
$935 USD
View
B+
Retailer 7
-
$1,370 AUD
$962 USD
View
A
Retailer 8
-
$1,417 AUD
€948 EUR
View
A
Retailer 9
-
$1,455 AUD
£805 GBP
View
A
Retailer 10
-
$1,519 AUD
$1,067 USD
View
B+
Retailer 11
-
$2,275 AUD
$1,598 USD
View
B+
Retailer 12
-
$2,319 AUD
$1,629 USD
View
B+
Retailer 13
-
$2,813 AUD
$1,976 USD
View
B
Retailer 14
-
$3,699 AUD
£2,046 GBP
View
B
Retailer 15
-
$4,178 AUD
$2,935 USD
View
Most Expensive
B
Brilliant Earth
9016856A · Oct 31
$5,965 AUD
$4,190 USD
View
15 more retailers have this diamond
Prices start from $710 AUDSave up to $5,255 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.

A
5.03ct Radiant
$710 AUD