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Cushion|Lab Grown|IGI

4.20ct H VS1 Cushion Lab Grown Diamond

GD • H/VS1 • IGI LG589377999

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG589377999

Diamond specifications and retailer prices

From $6,132 NZD
$3,450 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $6,132 NZD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 4.2ct lab-grown cushion diamond

This 4.2ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG589377999 or 589377999. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.20
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG589377999
Dimensions11.09 × 8.75 × 5.76 mm
L/W Ratio1.27
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
11.09 mm8.75 mm4.20 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG589377999
Side View
Table 63.0%Crown 28.7°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 65.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $6,132 NZD|Low: $1,296 NZD|High: $13,561 NZD|Avg: $4,928 NZD|-24.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
May 4, 2026
Retailer 8$1,325 NZD
Retailer 5$1,955 NZD
Retailer 4$2,437 NZD
Retailer 7$3,126 NZD
Retailer 6$4,267 NZD
Retailer 9$4,442 NZD
Retailer 2$4,674 NZD
Retailer 3$5,107 NZD
Brilliant Earth$6,132 NZD

36 data points across 9 retailers

1 retailer

B
Brilliant Earth
7677397A · Nov 2
$6,132 NZD
$3,450 USD
View

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.

B
4.20ct Cushion
$6,132 NZD