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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 $749 AUD
$526 USD
As of October 29, 2026
Save $8,519 AUD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,268 AUD at Brilliant Earth · As of October 29, 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 29, 2026, with prices from $749 to $9,268, a $8,519 spread on the same certified stone. Brilliant Earth lists it at $9,268. 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

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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 29
Current: $9,268 AUD|Low: $749 AUD|High: $9,552 AUD|Avg: $2,548 AUD|-3.0%
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
Retailer 18
October 30, 2026
Retailer 7$749 AUD
Retailer 16$831 AUD
Retailer 17$1,047 AUD
Retailer 18$1,260 AUD
Retailer 8$1,300 AUD
Retailer 12$1,318 AUD
Retailer 3$1,362 AUD
Retailer 2$1,379 AUD
Retailer 11$1,756 AUD
Retailer 13$1,805 AUD
Retailer 5$2,053 AUD
Retailer 10$2,343 AUD
Retailer 6$2,716 AUD
Retailer 9$2,931 AUD
Retailer 14$3,059 AUD
Retailer 4$3,111 AUD
Retailer 15$4,086 AUD
Brilliant Earth$9,268 AUD

36 data points across 18 retailers

17 retailers$749 AUD to $9,268 AUD

A
Cheapest Retailer
-
$749 AUD
$526 USD
Final sale: no returns
Retailer 2
-
$831 AUD
$584 USD
View
Price last confirmed 13 days ago
Retailer 3
-
$1,047 AUD
£579 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
$1,260 AUD
$885 USD
View
B+
Retailer 5
-
$1,300 AUD
$913 USD
View
A
Retailer 6
-
$1,318 AUD
€882 EUR
View
A
Retailer 7
-
$1,362 AUD
$957 USD
View
A
Retailer 8
-
$1,379 AUD
£763 GBP
View
A
Retailer 9
-
$1,756 AUD
View
A
Retailer 10
-
$1,805 AUD
ZAR 20,487 ZAR
View
A
Retailer 11
-
$2,053 AUD
$1,442 USD
View
B+
Retailer 12
-
$2,716 AUD
$1,908 USD
View
B+
Retailer 13
-
$2,931 AUD
$2,059 USD
View
B+
Retailer 14
-
$3,059 AUD
£1,692 GBP
View
B+
Retailer 15
-
$3,111 AUD
$2,185 USD
View
Retailer 16
-
$4,086 AUD
$2,870 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
18335227A · Oct 29
$9,268 AUD
$6,510 USD
View
16 more retailers have this diamond
Prices start from $749 AUDSave up to $8,519 AUD

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
$749 AUD