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Round|Lab Grown|IGI

3.53ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG579397776

Shape and cutting style on the report: Round brilliant

Certificate IGI LG579397776

Diamond specifications and retailer prices

From $641 AUD
$450 USD
As of October 29, 2026
Save $5,807 AUD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,448 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.53ct lab-grown round diamond

This 3.53ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG579397776 or 579397776. Listed at 12 retailers as of October 29, 2026, with prices from $641 to $6,448, a $5,807 spread on the same certified stone. Brilliant Earth lists it at $6,448. 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

3.53
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG579397776
Dimensions9.83 × 9.88 × 5.99 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.83 mm9.88 mm3.53 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG579397776
Side View
Table 57.0%Crown 33.3°Girdle: MediumPavilion 41°Culet: NoneDepth 60.7%

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 29
Current: $6,448 AUD|Low: $641 AUD|High: $6,448 AUD|Avg: $1,845 AUD|+54.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 4$641 AUD
Retailer 9$966 AUD
Retailer 6$1,176 AUD
Retailer 7$1,196 AUD
Retailer 10$1,228 AUD
Retailer 3$1,260 AUD
Retailer 2$1,287 AUD
Retailer 8$1,728 AUD
Retailer 12$2,517 AUD
Retailer 11$2,773 AUD
Retailer 5$2,892 AUD
Brilliant Earth$6,448 AUD

40 data points across 12 retailers

12 retailers$641 AUD to $6,448 AUD

A
Cheapest Retailer
-
$641 AUD
$450 USD
Final sale: no returns
A
Retailer 2
-
$966 AUD
HK$5,300 HKD
View
A
Retailer 3
-
$1,176 AUD
$826 USD
View
A
Retailer 4
-
$1,196 AUD
€800 EUR
View
A
Retailer 5
-
$1,228 AUD
$863 USD
View
A
Retailer 6
-
$1,260 AUD
$885 USD
View
A
Retailer 7
-
$1,287 AUD
£712 GBP
View
B+
Retailer 8
-
$1,728 AUD
View
B+
Retailer 9
-
$2,517 AUD
$1,768 USD
View
B+
Retailer 10
-
$2,773 AUD
SGD 2,633 SGD
View
B
Retailer 11
-
$2,892 AUD
£1,600 GBP
View
Most Expensive
C
Brilliant Earth
8901419A · Oct 29
$6,448 AUD
$4,530 USD
View
11 more retailers have this diamond
Prices start from $641 AUDSave up to $5,807 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
3.53ct Round
$641 AUD