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Round|Lab Grown|IGI

3.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG691513826

Shape and cutting style on the report: Round brilliant

Certificate IGI LG691513826

Diamond specifications and retailer prices

From $696 AUD
$489 USD
As of October 29, 2026
Save $2,862 AUD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,559 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.54ct lab-grown round diamond

This 3.54ct 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 LG691513826 or 691513826. Listed at 8 retailers as of October 29, 2026, with prices from $696 to $3,559, a $2,862 spread on the same certified stone. Brilliant Earth lists it at $3,559. 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

3.54
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG691513826
Dimensions9.87 × 9.90 × 5.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.87 mm9.90 mm3.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG691513826
Side View
Table 57.0%Crown 34.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.6%

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: $3,559 AUD|Low: $497 AUD|High: $4,300 AUD|Avg: $1,961 AUD|-2.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 28, 2026
Retailer 5$696 AUD
Retailer 2$975 AUD
Retailer 8$1,039 AUD
Retailer 7$1,245 AUD
Retailer 3$1,867 AUD
Retailer 4$2,669 AUD
Retailer 6$2,988 AUD
Brilliant Earth$3,559 AUD

15 data points across 8 retailers

8 retailers$696 AUD to $3,559 AUD

A
Cheapest Retailer
-
$696 AUD
$489 USD
Final sale: no returns
A
Retailer 2
-
$975 AUD
$685 USD
View
A
Retailer 3
-
$1,039 AUD
HK$5,700 HKD
View
A
Retailer 4
-
$1,245 AUD
$875 USD
View
B+
Retailer 5
-
$1,867 AUD
View
B
Retailer 6
-
$2,669 AUD
$1,875 USD
View
B
Retailer 7
-
$2,988 AUD
SGD 2,837 SGD
View
Most Expensive
B
Brilliant Earth
14885945Y · Oct 29
$3,559 AUD
$2,500 USD
View
7 more retailers have this diamond
Prices start from $696 AUDSave up to $2,862 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
3.54ct Round
$696 AUD