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Radiant|Lab Grown|IGI

5.58ct E SI1 Radiant Lab Grown Diamond

GD • E/SI1 • IGI LG658493594

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

Certificate IGI LG658493594

Diamond specifications and retailer prices

From €493 EUR
$551 USD
As of October 30, 2026
Save €3,955 EUR (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €4,449 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.58ct lab-grown radiant diamond

This 5.58ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG658493594 or 658493594. Listed at 16 retailers as of October 30, 2026, with prices from €493 to €4,449, a €3,955 spread on the same certified stone. Brilliant Earth lists it at €4,449. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

5.58
Carat
E
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.7°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658493594
Dimensions12.46 × 8.80 × 5.92 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.46 mm8.80 mm5.58 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658493594
Side View
Table 64.0%Crown 40.7°Girdle: MediumPavilion 35.6°Culet: NoneDepth 67.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €4,449 EUR|Low: €493 EUR|High: €7,769 EUR|Avg: €1,773 EUR|-42.7%
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€493 EUR
Retailer 11€552 EUR
Retailer 3€611 EUR
Retailer 5€611 EUR
Retailer 14€643 EUR
Retailer 4€707 EUR
Retailer 6€944 EUR
Retailer 9€953 EUR
Retailer 10€982 EUR
Retailer 7€1,018 EUR
Retailer 12€1,578 EUR
Retailer 16€1,608 EUR
Retailer 8€2,248 EUR
Retailer 2€2,654 EUR
Retailer 13€3,683 EUR
Brilliant Earth€4,449 EUR

37 data points across 16 retailers

16 retailers€493 EUR to €4,449 EUR

A
Cheapest Retailer
-
€493 EUR
$551 USD
B+
Retailer 2
-
€552 EUR
$617 USD
View
B+
Retailer 3
-
€611 EUR
$683 USD
View
Retailer 4
-
€611 EUR
$683 USD
View
Price last confirmed 16 days ago
Retailer 5
-
€643 EUR
£566 GBP
View
Price last confirmed 15 days ago
B+
Retailer 6
-
€707 EUR
$790 USD
View
B
Retailer 7
-
€944 EUR
$1,055 USD
View
B+
Retailer 8
-
€953 EUR
£839 GBP
View
B+
Retailer 9
-
€982 EUR
View
B+
Retailer 10
-
€1,018 EUR
$1,137 USD
View
B
Retailer 11
-
€1,578 EUR
$1,763 USD
View
B
Retailer 12
-
€1,608 EUR
$1,797 USD
View
B
Retailer 13
-
€2,248 EUR
$2,512 USD
View
B
Retailer 14
-
€2,654 EUR
£2,335 GBP
View
Retailer 15
-
€3,683 EUR
$4,115 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
11923361A · Oct 31
€4,449 EUR
$4,970 USD
View
15 more retailers have this diamond
Prices start from €493 EURSave up to €3,955 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
5.58ct Radiant
€493 EUR