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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 $784 AUD
$551 USD
As of October 30, 2026
Save $6,291 AUD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,075 AUD at Brilliant Earth · As of October 30, 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 $784 to $7,075, a $6,291 spread on the same certified stone. Brilliant Earth lists it at $7,075. 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
Colour
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: $7,075 AUD|Low: $784 AUD|High: $12,357 AUD|Avg: $2,852 AUD|-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
October 31, 2026
Retailer 15$784 AUD
Retailer 11$878 AUD
Retailer 3$972 AUD
Retailer 5$972 AUD
Retailer 14$1,023 AUD
Retailer 4$1,125 AUD
Retailer 6$1,502 AUD
Retailer 9$1,516 AUD
Retailer 2$1,562 AUD
Retailer 7$1,619 AUD
Retailer 12$2,510 AUD
Retailer 16$2,558 AUD
Retailer 8$3,576 AUD
Retailer 10$4,227 AUD
Retailer 13$5,858 AUD
Brilliant Earth$7,075 AUD

37 data points across 16 retailers

16 retailers$784 AUD to $7,075 AUD

A
Cheapest Retailer
-
$784 AUD
$551 USD
B+
Retailer 2
-
$878 AUD
$617 USD
View
B+
Retailer 3
-
$972 AUD
$683 USD
View
Retailer 4
-
$972 AUD
$683 USD
View
Price last confirmed 15 days ago
Retailer 5
-
$1,023 AUD
£566 GBP
View
Price last confirmed 14 days ago
B+
Retailer 6
-
$1,125 AUD
$790 USD
View
B
Retailer 7
-
$1,502 AUD
$1,055 USD
View
B+
Retailer 8
-
$1,516 AUD
£839 GBP
View
B+
Retailer 9
-
$1,562 AUD
€1,045 EUR
View
B+
Retailer 10
-
$1,619 AUD
$1,137 USD
View
B
Retailer 11
-
$2,510 AUD
$1,763 USD
View
B
Retailer 12
-
$2,558 AUD
$1,797 USD
View
B
Retailer 13
-
$3,576 AUD
$2,512 USD
View
B
Retailer 14
-
$4,227 AUD
£2,338 GBP
View
Retailer 15
-
$5,858 AUD
$4,115 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
11923361A · Oct 30
$7,075 AUD
$4,970 USD
View
15 more retailers have this diamond
Prices start from $784 AUDSave up to $6,291 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
5.58ct Radiant
$784 AUD