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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 $894 USD
€851 EUR
As of October 29, 2026
Save $1,822 USD (67%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,715 USD 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 $894 to $2,715, a $1,822 spread on the same certified stone. MOH London lists it at $2,715. 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
Color
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 29
Current: $2,715 USD|Low: $695 USD|High: $2,744 USD|Avg: $1,434 USD|+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$749 USD
Retailer 4$894 USD
Retailer 7$915 USD
Retailer 2$1,002 USD
Retailer 10$1,006 USD
Retailer 8$1,032 USD
Retailer 9$1,234 USD
Retailer 5$1,676 USD
Retailer 6$2,025 USD
Retailer 3$2,640 USD
MOH London$2,715 USD

35 data points across 11 retailers

15 retailers$894 USD to $2,715 USD

Retailer 1
-
$446 USD
Price last confirmed 37 days ago
Retailer 2
-
$500 USD
View
Price last confirmed 37 days ago
Retailer 3
-
$546 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$749 USD
£590 GBP
View
Price last confirmed 22 days ago
A
Retailer 5
-
$894 USD
€851 EUR
View
B+
Retailer 6
-
$915 USD
View
A
Retailer 7
-
$1,002 USD
£789 GBP
View
B+
Retailer 8
-
$1,006 USD
View
A
Retailer 9
-
$1,032 USD
View
B+
Retailer 10
-
$1,234 USD
View
B
Retailer 11
-
$1,676 USD
View
Retailer 12
-
$1,779 USD
View
Price last confirmed 34 days ago
B
Retailer 13
-
$2,025 USD
View
B
Retailer 14
-
$2,640 USD
View
Most Expensive
B
MOH London
LG600328442 · Oct 26
$2,715 USD
£2,138 GBP
View
14 more retailers have this diamond
Prices start from $894 USDSave up to $1,822 USD

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
$894 USD