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Cushion|Lab Grown|IGI

3.10ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG624442531

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG624442531

Diamond specifications and retailer prices

From $830 NZD
As of November 6, 2026
Save $2,805 NZD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,635 NZD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion 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 LG624442531 or 624442531. Listed at 10 retailers as of November 1, 2026, with prices from $830 to $3,635, a $2,805 spread on the same certified stone. Rare Carat lists it at $3,635. 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

3.10
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG624442531
Dimensions8.48 × 8.42 × 5.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.48 mm8.42 mm3.10 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG624442531
Side View
Table 64.0%Crown 35.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 67.0%

Caratlytics Score

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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: Nov 6
Current: $3,635 NZD|Low: $830 NZD|High: $7,376 NZD|Avg: $2,544 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
November 6, 2026
Retailer 10$830 NZD
Retailer 5$897 NZD
Retailer 8$1,010 NZD
Retailer 12$1,189 NZD
Retailer 2$1,194 NZD
Retailer 6$1,301 NZD
Retailer 9$1,313 NZD
Retailer 11$1,831 NZD
Retailer 7$2,949 NZD
Rare Carat$3,635 NZD
Retailer 4$6,584 NZD
Retailer 3$7,376 NZD

10 data points across 12 retailers

10 retailers$830 NZD to $3,635 NZD

A
Cheapest Retailer
-
$830 NZD
A
Retailer 2
-
$897 NZD
View
A
Retailer 3
-
$1,010 NZD
View
B+
Retailer 4
-
$1,189 NZD
View
A
Retailer 5
-
$1,194 NZD
View
A
Retailer 6
-
$1,301 NZD
View
A
Retailer 7
-
$1,313 NZD
View
A
Retailer 8
-
$1,831 NZD
View
B
Retailer 9
-
$2,949 NZD
View
Most Expensive
B
Rare Carat
KI5314425KF624 · Nov 1
$3,635 NZD
$2,015 USD
View
9 more retailers have this diamond
Prices start from $830 NZDSave up to $2,805 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
3.10ct Cushion
$830 NZD