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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 $1,272 AUD
€851 EUR
As of October 29, 2026
Save $2,593 AUD (67%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,865 AUD 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 $1,272 to $3,865, a $2,593 spread on the same certified stone. MOH London lists it at $3,865. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $3,865 AUD|Low: $989 AUD|High: $3,906 AUD|Avg: $2,042 AUD|+33.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 11$1,066 AUD
Retailer 4$1,272 AUD
Retailer 7$1,302 AUD
Retailer 2$1,426 AUD
Retailer 10$1,432 AUD
Retailer 8$1,469 AUD
Retailer 9$1,756 AUD
Retailer 5$2,386 AUD
Retailer 6$2,882 AUD
Retailer 3$3,758 AUD
MOH London$3,865 AUD

36 data points across 11 retailers

15 retailers$1,272 AUD to $3,865 AUD

Retailer 1
-
$635 AUD
$446 USD
Price last confirmed 36 days ago
Retailer 2
-
$712 AUD
$500 USD
View
Price last confirmed 36 days ago
Retailer 3
-
$777 AUD
$546 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$1,066 AUD
£590 GBP
View
Price last confirmed 22 days ago
A
Retailer 5
-
$1,272 AUD
€851 EUR
View
B+
Retailer 6
-
$1,302 AUD
$915 USD
View
A
Retailer 7
-
$1,426 AUD
£789 GBP
View
B+
Retailer 8
-
$1,432 AUD
$1,006 USD
View
A
Retailer 9
-
$1,469 AUD
$1,032 USD
View
B+
Retailer 10
-
$1,756 AUD
$1,234 USD
View
B
Retailer 11
-
$2,386 AUD
$1,676 USD
View
Retailer 12
-
$2,532 AUD
$1,779 USD
View
Price last confirmed 33 days ago
B
Retailer 13
-
$2,882 AUD
$2,025 USD
View
B
Retailer 14
-
$3,758 AUD
$2,640 USD
View
Most Expensive
B
MOH London
LG600328442 · Oct 26
$3,865 AUD
£2,138 GBP
View
14 more retailers have this diamond
Prices start from $1,272 AUDSave up to $2,593 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
3.71ct Round
$1,272 AUD