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Cushion|Lab Grown|IGI

4.05ct H VS1 Cushion Lab Grown Diamond

GD • H/VS1 • IGI LG840657039

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840657039

Diamond specifications and retailer prices

From $1,388 NZD
HK$6,100 HKD
As of November 3, 2026
Save $7,996 NZD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,384 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 4.05ct lab-grown cushion diamond

This 4.05ct 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 LG840657039 or 840657039. Listed at 17 retailers as of November 2, 2026, with prices from $1,388 to $9,384, a $7,996 spread on the same certified stone. Brilliant Earth lists it at $9,384. 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

4.05
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840657039
Dimensions11.28 × 8.05 × 5.14 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.28 mm8.05 mm4.05 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840657039
Side View
Table 65.0%Crown 34°Girdle: MED-STKPavilion 32.5°Culet: NoneDepth 63.9%

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: $2,909 NZD|Low: $1,150 NZD|High: $5,675 NZD|Avg: $3,016 NZD|+1.0%
Retailer 1
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
Retailer 17
Retailer 18
November 2, 2026
Retailer 4$1,162 NZD
Retailer 12$1,388 NZD
Retailer 10$1,423 NZD
Retailer 15$1,484 NZD
Retailer 18$1,845 NZD
Retailer 11$1,851 NZD
Retailer 16$1,978 NZD
Retailer 2$2,263 NZD
Retailer 5$2,540 NZD
Retailer 7$2,573 NZD
Retailer 1$2,909 NZD
Retailer 6$3,738 NZD
Retailer 8$3,866 NZD
Retailer 14$4,031 NZD
Retailer 17$4,101 NZD
Retailer 3$4,169 NZD
Retailer 9$5,562 NZD
Retailer 13$5,613 NZD

24 data points across 18 retailers

17 retailers$1,388 NZD to $9,384 NZD

A
Cheapest Retailer
-
$1,388 NZD
HK$6,100 HKD
Retailer 2
-
$1,484 NZD
$835 USD
View
Price last confirmed 6 days ago
Retailer 3
-
$1,845 NZD
$1,038 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$1,851 NZD
€992 EUR
View
Retailer 5
-
$1,978 NZD
$1,113 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$2,263 NZD
$1,273 USD
View
Retailer 7
-
$2,540 NZD
ZAR 23,087 ZAR
View
Price last confirmed 10 days ago
Retailer 8
-
$2,573 NZD
A$2,227 AUD
View
Price last confirmed 14 days ago
B+
Retailer 9
-
$2,909 NZD
$1,637 USD
View
Retailer 10
-
$3,738 NZD
£1,656 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$3,866 NZD
$2,175 USD
View
B+
Retailer 12
-
$4,031 NZD
SGD 3,065 SGD
View
Retailer 13
-
$4,101 NZD
$2,307 USD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
$4,169 NZD
$2,346 USD
View
Retailer 15
-
$5,562 NZD
£2,464 GBP
View
Price last confirmed 13 days ago
B
Retailer 16
-
$5,613 NZD
$3,158 USD
View
Most Expensive
B
Brilliant Earth
21823092A · Nov 2
$9,384 NZD
$5,280 USD
View
16 more retailers have this diamond
Prices start from $1,388 NZDSave up to $7,996 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
4.05ct Cushion
$1,388 NZD