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Round|Lab Grown|IGI

3.71ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG600328442

Shape and cutting style on the report: Round brilliant

Certificate IGI LG600328442

Diamond specifications and retailer prices

From $1,393 NZD
$785 USD
As of October 31, 2026
Save $3,425 NZD (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,818 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 3.71ct lab-grown round diamond

This 3.71ct 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 LG600328442 or 600328442. Listed at 15 retailers as of October 26, 2026, with prices from $1,393 to $4,818, a $3,425 spread on the same certified stone. MOH London lists it at $4,818. 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

3.71
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG600328442
Dimensions9.92 × 9.89 × 6.12 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.92 mm9.89 mm3.71 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG600328442
Side View
Table 57.0%Crown 35.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.7%

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: $4,818 NZD|Low: $981 NZD|High: $4,870 NZD|Avg: $2,397 NZD|+33.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 4$981 NZD
Retailer 12$1,329 NZD
Retailer 5$1,393 NZD
Retailer 2$1,580 NZD
Retailer 6$1,781 NZD
Retailer 11$1,785 NZD
Retailer 9$1,831 NZD
Retailer 10$2,189 NZD
Retailer 7$2,974 NZD
Retailer 8$3,593 NZD
Retailer 3$4,684 NZD
MOH London$4,818 NZD

35 data points across 12 retailers

15 retailers$1,393 NZD to $4,818 NZD

Retailer 1
-
$791 NZD
$446 USD
Price last confirmed 38 days ago
Retailer 2
-
$887 NZD
$500 USD
View
Price last confirmed 38 days ago
Retailer 3
-
$969 NZD
$546 USD
View
Price last confirmed 34 days ago
Retailer 4
-
$1,329 NZD
£590 GBP
View
Price last confirmed 24 days ago
A
Retailer 5
-
$1,393 NZD
$785 USD
View
A
Retailer 6
-
$1,580 NZD
€848 EUR
View
A
Retailer 7
-
$1,781 NZD
£791 GBP
View
B+
Retailer 8
-
$1,785 NZD
$1,006 USD
View
A
Retailer 9
-
$1,831 NZD
$1,032 USD
View
B+
Retailer 10
-
$2,189 NZD
$1,234 USD
View
B
Retailer 11
-
$2,974 NZD
$1,676 USD
View
Retailer 12
-
$3,156 NZD
$1,779 USD
View
Price last confirmed 35 days ago
B
Retailer 13
-
$3,593 NZD
$2,025 USD
View
B
Retailer 14
-
$4,684 NZD
$2,640 USD
View
Most Expensive
B
MOH London
LG600328442 · Oct 26
$4,818 NZD
£2,138 GBP
View
14 more retailers have this diamond
Prices start from $1,393 NZDSave up to $3,425 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
3.71ct Round
$1,393 NZD