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Cushion|Lab Grown|IGI

4.05ct D VS2 Cushion Lab Grown Diamond

EX • D/VS2 • IGI LG779602362

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG779602362

Diamond specifications and retailer prices

From $1,668 NZD
$940 USD
As of October 31, 2026
Save $10,433 NZD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $12,101 NZD at Brilliant Earth · As of October 31, 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 D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG779602362 or 779602362. Listed at 13 retailers as of October 31, 2026, with prices from $1,668 to $12,101, a $10,433 spread on the same certified stone. Brilliant Earth lists it at $12,101. 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

4.05
Carat
D
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779602362
Dimensions9.37 × 9.23 × 6.12 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.37 mm9.23 mm4.05 ctD / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779602362
Side View
Table 62.0%Crown 35.6°Girdle: THN-MEDPavilion 39.2°Culet: NoneDepth 66.3%

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: Oct 31
Current: $12,101 NZD|Low: $1,341 NZD|High: $14,141 NZD|Avg: $4,176 NZD|-14.4%
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
October 31, 2026
Retailer 9$1,341 NZD
Retailer 10$1,668 NZD
Retailer 13$2,099 NZD
Retailer 6$2,146 NZD
Retailer 12$2,207 NZD
Retailer 2$2,252 NZD
Retailer 4$3,382 NZD
Retailer 3$4,218 NZD
Retailer 11$4,617 NZD
Retailer 5$4,670 NZD
Retailer 8$5,509 NZD
Retailer 7$5,710 NZD
Brilliant Earth$12,101 NZD

38 data points across 13 retailers

13 retailers$1,668 NZD to $12,101 NZD

Retailer 1
-
$1,341 NZD
£595 GBP
Price last confirmed 15 days ago
A
Retailer 2
-
$1,668 NZD
$940 USD
View
A
Retailer 3
-
$2,099 NZD
$1,183 USD
View
A
Retailer 4
-
$2,146 NZD
£952 GBP
View
A
Retailer 5
-
$2,207 NZD
$1,244 USD
View
A
Retailer 6
-
$2,252 NZD
€1,209 EUR
View
A
Retailer 7
-
$3,382 NZD
$1,906 USD
View
B+
Retailer 8
-
$4,218 NZD
£1,872 GBP
View
B+
Retailer 9
-
$4,617 NZD
$2,602 USD
View
Retailer 10
-
$4,670 NZD
$2,632 USD
View
Price last confirmed 13 days ago
Retailer 11
-
$5,509 NZD
$3,105 USD
View
Price last confirmed 13 days ago
B+
Retailer 12
-
$5,710 NZD
£2,534 GBP
View
Most Expensive
B
Brilliant Earth
17884919A · Oct 31
$12,101 NZD
$6,820 USD
View
12 more retailers have this diamond
Prices start from $1,668 NZDSave up to $10,433 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
$1,668 NZD