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Cushion|Lab Grown|IGI

4.02ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG593391838

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG593391838

Diamond specifications and retailer prices

From $1,411 NZD
HK$6,200 HKD
As of November 3, 2026
Save $7,906 NZD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,317 NZD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 4.02ct lab-grown cushion diamond

This 4.02ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG593391838 or 593391838. Listed at 14 retailers as of November 3, 2026, with prices from $1,411 to $9,317, a $7,906 spread on the same certified stone. Brilliant Earth lists it at $9,317. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.02
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593391838
Dimensions9.57 × 9.18 × 6.10 mm
L/W Ratio1.04
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
9.57 mm9.18 mm4.02 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593391838
Side View
Table 61.0%Crown 32.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 66.4%

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: Nov 3
Current: $9,317 NZD|Low: $957 NZD|High: $9,637 NZD|Avg: $3,108 NZD|-3.3%
Brilliant Earth
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
November 2, 2026
Retailer 8$957 NZD
Retailer 5$1,411 NZD
Retailer 9$1,422 NZD
Retailer 3$1,520 NZD
Retailer 12$1,846 NZD
Retailer 13$1,982 NZD
Retailer 6$2,143 NZD
Retailer 15$2,235 NZD
Retailer 2$2,568 NZD
Retailer 14$2,585 NZD
Retailer 11$2,642 NZD
Retailer 7$4,010 NZD
Retailer 4$4,073 NZD
Retailer 16$4,177 NZD
Retailer 10$5,602 NZD
Brilliant Earth$9,317 NZD

7 data points across 16 retailers

14 retailers$1,411 NZD to $9,317 NZD

A
Cheapest Retailer
-
$1,411 NZD
HK$6,200 HKD
A
Retailer 2
-
$1,422 NZD
£630 GBP
View
A
Retailer 3
-
$1,520 NZD
$855 USD
View
A
Retailer 4
-
$1,846 NZD
$1,038 USD
View
B+
Retailer 5
-
$1,982 NZD
$1,115 USD
View
A
Retailer 6
-
$2,235 NZD
$1,257 USD
View
A
Retailer 7
-
$2,568 NZD
ZAR 23,333 ZAR
View
A
Retailer 8
-
$2,585 NZD
A$2,237 AUD
View
A
Retailer 9
-
$2,642 NZD
$1,486 USD
View
B+
Retailer 10
-
$3,796 NZD
$2,135 USD
View
B+
Retailer 11
-
$4,073 NZD
SGD 3,096 SGD
View
B+
Retailer 12
-
$4,177 NZD
$2,349 USD
View
B+
Retailer 13
-
$5,602 NZD
£2,481 GBP
View
Most Expensive
B
Brilliant Earth
17656189A · Nov 3
$9,317 NZD
$5,240 USD
View
13 more retailers have this diamond
Prices start from $1,411 NZDSave up to $7,906 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
4.02ct Cushion
$1,411 NZD