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Cushion|Lab Grown|IGI

3.09ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG784639101

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

Certificate IGI LG784639101

Diamond specifications and retailer prices

From $933 NZD
$526 USD
As of November 1, 2026
Save $10,617 NZD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,551 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG784639101 or 784639101. Listed at 17 retailers as of October 31, 2026, with prices from $933 to $11,551, a $10,617 spread on the same certified stone. Brilliant Earth lists it at $11,551. 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

3.09
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784639101
Dimensions8.52 × 8.38 × 5.57 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
8.52 mm8.38 mm3.09 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784639101
Side View
Table 63.0%Crown 36.2°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 66.5%

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 1
Current: $11,551 NZD|Low: $933 NZD|High: $11,551 NZD|Avg: $2,976 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
November 2, 2026
Retailer 7$933 NZD
Retailer 15$1,036 NZD
Retailer 16$1,305 NZD
Retailer 17$1,570 NZD
Retailer 8$1,620 NZD
Retailer 11$1,630 NZD
Retailer 3$1,698 NZD
Retailer 2$1,705 NZD
Retailer 12$2,189 NZD
Retailer 13$2,250 NZD
Retailer 5$2,559 NZD
Retailer 6$3,385 NZD
Retailer 9$3,653 NZD
Retailer 10$3,808 NZD
Retailer 4$3,877 NZD
Retailer 14$5,092 NZD
Brilliant Earth$11,551 NZD

37 data points across 17 retailers

17 retailers$933 NZD to $11,551 NZD

A
Cheapest Retailer
-
$933 NZD
$526 USD
Final sale: no returns
Retailer 2
-
$1,036 NZD
$584 USD
View
Price last confirmed 16 days ago
Retailer 3
-
$1,305 NZD
£579 GBP
View
Price last confirmed 16 days ago
A
Retailer 4
-
$1,570 NZD
$885 USD
View
B+
Retailer 5
-
$1,620 NZD
$913 USD
View
A
Retailer 6
-
$1,630 NZD
€875 EUR
View
A
Retailer 7
-
$1,698 NZD
$957 USD
View
A
Retailer 8
-
$1,705 NZD
£757 GBP
View
A
Retailer 9
-
$2,189 NZD
A$1,898 AUD
View
A
Retailer 10
-
$2,250 NZD
ZAR 20,487 ZAR
View
A
Retailer 11
-
$2,559 NZD
$1,442 USD
View
B+
Retailer 12
-
$3,385 NZD
$1,908 USD
View
B+
Retailer 13
-
$3,653 NZD
$2,059 USD
View
B+
Retailer 14
-
$3,808 NZD
£1,690 GBP
View
B+
Retailer 15
-
$3,877 NZD
$2,185 USD
View
B+
Retailer 16
-
$5,092 NZD
$2,870 USD
View
Most Expensive
B
Brilliant Earth
18335227A · Oct 31
$11,551 NZD
$6,510 USD
View
16 more retailers have this diamond
Prices start from $933 NZDSave up to $10,617 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
3.09ct Cushion
$933 NZD