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Round|Lab Grown|IGI

3.71ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG666401279

Shape and cutting style on the report: Round brilliant

Certificate IGI LG666401279

Diamond specifications and retailer prices

From $699 NZD
$394 USD
As of October 29, 2026
Save $2,894 NZD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,593 NZD at Rare Carat · As of October 28, 2026
View at Rare Carat

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 LG666401279 or 666401279. Listed at 14 retailers as of October 28, 2026, with prices from $699 to $3,593, a $2,894 spread on the same certified stone. Rare Carat lists it at $3,593. 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 angle34.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG666401279
Dimensions9.93 × 9.97 × 6.08 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.93 mm9.97 mm3.71 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG666401279
Side View
Table 57.0%Crown 34.6°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.1%

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 29
Current: $4,564 NZD|Low: $699 NZD|High: $9,019 NZD|Avg: $2,635 NZD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 11$699 NZD
Retailer 6$782 NZD
Retailer 5$866 NZD
Retailer 15$954 NZD
Retailer 12$1,127 NZD
Retailer 10$1,161 NZD
Retailer 3$1,375 NZD
Retailer 13$1,379 NZD
Retailer 2$1,418 NZD
Retailer 14$1,462 NZD
Retailer 16$2,111 NZD
Retailer 9$2,431 NZD
Retailer 4$2,786 NZD
Rare Carat$4,564 NZD
Retailer 8$6,884 NZD
Retailer 7$9,019 NZD

5 data points across 16 retailers

14 retailers$699 NZD to $3,593 NZD

A
Cheapest Retailer
-
$699 NZD
$394 USD
A
Retailer 2
-
$782 NZD
$441 USD
View
A
Retailer 3
-
$866 NZD
$488 USD
View
A
Retailer 4
-
$954 NZD
HK$4,200 HKD
View
A
Retailer 5
-
$1,127 NZD
$635 USD
View
A
Retailer 6
-
$1,161 NZD
£515 GBP
View
B+
Retailer 7
-
$1,375 NZD
$775 USD
View
A
Retailer 8
-
$1,379 NZD
€740 EUR
View
A
Retailer 9
-
$1,418 NZD
£629 GBP
View
A
Retailer 10
-
$1,462 NZD
$824 USD
View
B+
Retailer 11
-
$2,111 NZD
$1,190 USD
View
B+
Retailer 12
-
$2,431 NZD
$1,370 USD
View
B+
Retailer 13
-
$2,786 NZD
$1,570 USD
View
Most Expensive
B
Rare Carat
KI2794012KF666 · Oct 28
$3,593 NZD
$2,025 USD
View
13 more retailers have this diamond
Prices start from $699 NZDSave up to $2,894 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
$699 NZD