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Cushion|Lab Grown|IGI

4.05ct D VVS1 Cushion Lab Grown Diamond

EX • D/VVS1 • IGI LG728567933

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG728567933

Diamond specifications and retailer prices

From $2,300 NZD
$1,291 USD
As of October 28, 2026
Save $10,865 NZD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $13,165 NZD at Brilliant Earth · As of October 28, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG728567933 or 728567933. Listed at 18 retailers as of October 28, 2026, with prices from $2,300 to $13,165, a $10,865 spread on the same certified stone. Brilliant Earth lists it at $13,165. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728567933
Dimensions8.59 × 8.59 × 5.76 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.59 mm8.59 mm4.05 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728567933
Side View
Table 61.0%Crown 37.9°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 67.1%

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 28
Current: $13,165 NZD|Low: $2,300 NZD|High: $13,165 NZD|Avg: $5,389 NZD
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
Retailer 17
October 29, 2026
Retailer 11$2,300 NZD
Retailer 4$2,382 NZD
Retailer 13$2,654 NZD
Retailer 5$3,037 NZD
Retailer 12$3,434 NZD
Retailer 16$3,581 NZD
Retailer 14$3,794 NZD
Retailer 2$5,071 NZD
Retailer 15$5,100 NZD
Retailer 17$5,435 NZD
Retailer 6$6,149 NZD
Retailer 7$6,570 NZD
Retailer 3$6,588 NZD
Retailer 9$7,192 NZD
Retailer 10$7,695 NZD
Retailer 8$8,339 NZD
Brilliant Earth$13,165 NZD

40 data points across 17 retailers

18 retailers$2,300 NZD to $13,165 NZD

A
Cheapest Retailer
-
$2,300 NZD
$1,291 USD
Final sale: no returns
A
Retailer 2
-
$2,382 NZD
$1,337 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$2,654 NZD
$1,490 USD
View
A
Retailer 4
-
$3,037 NZD
$1,705 USD
View
A
Retailer 5
-
$3,434 NZD
£1,518 GBP
View
A
Retailer 6
-
$3,581 NZD
$2,010 USD
View
A
Retailer 7
-
$3,794 NZD
€2,028 EUR
View
A
Retailer 8
-
$5,071 NZD
ZAR 45,981 ZAR
View
B+
Retailer 9
-
$5,100 NZD
A$4,404 AUD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$5,435 NZD
$3,051 USD
View
B+
Retailer 11
-
$6,149 NZD
$3,451 USD
View
B+
Retailer 12
-
$6,570 NZD
£2,904 GBP
View
Price last confirmed 17 days ago
B+
Retailer 13
-
$6,588 NZD
$3,698 USD
View
B+
Retailer 14
-
$6,896 NZD
$3,871 USD
View
B+
Retailer 15
-
$7,192 NZD
$4,037 USD
View
B+
Retailer 16
-
$7,695 NZD
£3,401 GBP
View
B
Retailer 17
-
$8,339 NZD
$4,681 USD
View
Most Expensive
B
Brilliant Earth
15634959A · Oct 28
$13,165 NZD
$7,390 USD
View
17 more retailers have this diamond
Prices start from $2,300 NZDSave up to $10,865 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
$2,300 NZD