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 €447 EUR
$499 USD
As of October 30, 2026
Save €3,304 EUR (88%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €3,750 EUR 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 €447 to €3,750, a €3,304 spread on the same certified stone. Brilliant Earth lists it at €3,750. 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
Color
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: €3,750 EUR|Low: €447 EUR|High: €4,538 EUR|Avg: €1,352 EUR|-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€447 EUR
Retailer 11€500 EUR
Retailer 3€554 EUR
Retailer 5€554 EUR
Retailer 14€583 EUR
Retailer 4€837 EUR
Retailer 6€861 EUR
Retailer 9€891 EUR
Retailer 2€915 EUR
Retailer 7€955 EUR
Retailer 12€1,430 EUR
Retailer 16€1,458 EUR
Retailer 8€1,769 EUR
Retailer 10€2,326 EUR
Retailer 13€2,627 EUR
Brilliant Earth€3,750 EUR

39 data points across 16 retailers

16 retailers€447 EUR to €3,750 EUR

A
Cheapest Retailer
-
€447 EUR
$499 USD
A
Retailer 2
-
€500 EUR
$559 USD
View
A
Retailer 3
-
€554 EUR
$619 USD
View
Retailer 4
-
€554 EUR
$619 USD
View
Price last confirmed 15 days ago
Retailer 5
-
€583 EUR
£513 GBP
View
Price last confirmed 15 days ago
A
Retailer 6
-
€837 EUR
$935 USD
View
B+
Retailer 7
-
€861 EUR
$962 USD
View
A
Retailer 8
-
€891 EUR
View
A
Retailer 9
-
€915 EUR
£805 GBP
View
A
Retailer 10
-
€955 EUR
$1,067 USD
View
B+
Retailer 11
-
€1,430 EUR
$1,598 USD
View
B+
Retailer 12
-
€1,458 EUR
$1,629 USD
View
B+
Retailer 13
-
€1,769 EUR
$1,976 USD
View
B
Retailer 14
-
€2,326 EUR
£2,046 GBP
View
B
Retailer 15
-
€2,627 EUR
$2,935 USD
View
Most Expensive
B
Brilliant Earth
9016856A · Oct 31
€3,750 EUR
$4,190 USD
View
15 more retailers have this diamond
Prices start from €447 EURSave up to €3,304 EUR

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
€447 EUR