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3.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG620433613

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620433613

Diamond specifications and retailer prices

From $1,218 AUD
€815 EUR
As of October 29, 2026
Save $3,536 AUD (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,754 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 LG620433613 or 620433613. Listed at 14 retailers as of October 29, 2026, with prices from $1,218 to $4,754, a $3,536 spread on the same certified stone. Brilliant Earth lists it at $4,754. 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 angle33.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620433613
Dimensions9.90 × 9.85 × 5.93 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.90 mm9.85 mm3.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620433613
Side View
Table 58.0%Crown 33.8°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 60.1%

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 29
Current: $4,754 AUD|Low: $961 AUD|High: $5,224 AUD|Avg: $1,997 AUD|-9.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 10$1,020 AUD
Retailer 4$1,218 AUD
Retailer 5$1,238 AUD
Retailer 9$1,375 AUD
Retailer 7$1,423 AUD
Retailer 2$1,468 AUD
Retailer 8$1,614 AUD
Retailer 6$2,283 AUD
Retailer 3$3,713 AUD
Brilliant Earth$4,754 AUD

36 data points across 10 retailers

14 retailers$1,218 AUD to $4,754 AUD

Retailer 1
-
$608 AUD
$427 USD
Price last confirmed 36 days ago
Retailer 2
-
$680 AUD
$478 USD
View
Price last confirmed 36 days ago
Retailer 3
-
$744 AUD
$523 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$1,020 AUD
£564 GBP
View
Price last confirmed 21 days ago
A
Retailer 5
-
$1,218 AUD
€815 EUR
View
B+
Retailer 6
-
$1,238 AUD
$870 USD
View
B+
Retailer 7
-
$1,375 AUD
$966 USD
View
B+
Retailer 8
-
$1,423 AUD
$1,000 USD
View
B+
Retailer 9
-
$1,468 AUD
£812 GBP
View
B+
Retailer 10
-
$1,614 AUD
$1,134 USD
View
B
Retailer 11
-
$2,283 AUD
$1,604 USD
View
Retailer 12
-
$2,424 AUD
$1,703 USD
View
Price last confirmed 33 days ago
B
Retailer 13
-
$3,713 AUD
£2,054 GBP
View
Most Expensive
B
Brilliant Earth
9147870A · Oct 29
$4,754 AUD
$3,340 USD
View
13 more retailers have this diamond
Prices start from $1,218 AUDSave up to $3,536 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
$1,218 AUD