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3.57ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG582385318

Shape and cutting style on the report: Round brilliant

Certificate IGI LG582385318

Diamond specifications and retailer prices

From $1,357 NZD
$765 USD
As of October 31, 2026
Save $4,622 NZD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,979 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.57ct lab-grown round diamond

This 3.57ct 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 LG582385318 or 582385318. Listed at 13 retailers as of October 29, 2026, with prices from $1,357 to $5,979, a $4,622 spread on the same certified stone. Brilliant Earth lists it at $5,979. 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

3.57
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG582385318
Dimensions9.75 × 9.80 × 6.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.75 mm9.80 mm3.57 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG582385318
Side View
Table 58.0%Crown 35.2°Girdle: MediumPavilion 41°Culet: NoneDepth 61.6%

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: $5,979 NZD|Low: $855 NZD|High: $6,565 NZD|Avg: $2,230 NZD|-8.9%
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 11$855 NZD
Retailer 3$947 NZD
Retailer 4$1,357 NZD
Retailer 2$1,526 NZD
Retailer 9$1,726 NZD
Retailer 10$1,785 NZD
Retailer 5$1,845 NZD
Retailer 8$2,042 NZD
Retailer 6$2,869 NZD
Retailer 7$4,664 NZD
Brilliant Earth$5,979 NZD

38 data points across 11 retailers

13 retailers$1,357 NZD to $5,979 NZD

Retailer 1
-
$763 NZD
$430 USD
Price last confirmed 38 days ago
Retailer 2
-
$855 NZD
$482 USD
View
Price last confirmed 38 days ago
Retailer 3
-
$935 NZD
$527 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
$1,357 NZD
$765 USD
View
A
Retailer 5
-
$1,526 NZD
€819 EUR
View
B+
Retailer 6
-
$1,726 NZD
$973 USD
View
A
Retailer 7
-
$1,785 NZD
$1,006 USD
View
B+
Retailer 8
-
$1,845 NZD
£819 GBP
View
B+
Retailer 9
-
$2,042 NZD
$1,151 USD
View
B
Retailer 10
-
$2,869 NZD
$1,617 USD
View
Retailer 11
-
$3,045 NZD
$1,716 USD
View
Price last confirmed 34 days ago
B
Retailer 12
-
$4,664 NZD
£2,070 GBP
View
Most Expensive
B
Brilliant Earth
7626284A · Oct 29
$5,979 NZD
$3,370 USD
View
12 more retailers have this diamond
Prices start from $1,357 NZDSave up to $4,622 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
3.57ct Round
$1,357 NZD