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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 $1,348 NZD
$760 USD
As of October 31, 2026
Save $4,578 NZD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,926 NZD 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 $1,348 to $5,926, a $4,578 spread on the same certified stone. Brilliant Earth lists it at $5,926. 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 31
Current: $5,926 NZD|Low: $940 NZD|High: $6,512 NZD|Avg: $2,330 NZD|-9.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 3$940 NZD
Retailer 11$1,272 NZD
Retailer 2$1,348 NZD
Retailer 6$1,518 NZD
Retailer 10$1,714 NZD
Retailer 8$1,774 NZD
Retailer 4$1,815 NZD
Retailer 9$2,012 NZD
Retailer 7$2,846 NZD
Retailer 5$4,628 NZD
Brilliant Earth$5,926 NZD

37 data points across 11 retailers

14 retailers$1,348 NZD to $5,926 NZD

Retailer 1
-
$758 NZD
$427 USD
Price last confirmed 37 days ago
Retailer 2
-
$848 NZD
$478 USD
View
Price last confirmed 37 days ago
Retailer 3
-
$928 NZD
$523 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$1,272 NZD
£564 GBP
View
Price last confirmed 23 days ago
A
Retailer 5
-
$1,348 NZD
$760 USD
View
A
Retailer 6
-
$1,518 NZD
€815 EUR
View
B+
Retailer 7
-
$1,714 NZD
$966 USD
View
B+
Retailer 8
-
$1,774 NZD
$1,000 USD
View
B+
Retailer 9
-
$1,815 NZD
£805 GBP
View
B+
Retailer 10
-
$2,012 NZD
$1,134 USD
View
B
Retailer 11
-
$2,846 NZD
$1,604 USD
View
Retailer 12
-
$3,022 NZD
$1,703 USD
View
Price last confirmed 34 days ago
B
Retailer 13
-
$4,628 NZD
£2,054 GBP
View
Most Expensive
B
Brilliant Earth
9147870A · Oct 29
$5,926 NZD
$3,340 USD
View
13 more retailers have this diamond
Prices start from $1,348 NZDSave up to $4,578 NZD

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
$1,348 NZD