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Cushion|Lab Grown|IGI

3.09ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG689542466

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

Certificate IGI LG689542466

Diamond specifications and retailer prices

From $826 AUD
$580 USD
As of October 29, 2026
Save $8,442 AUD (91%) vs most expensive(unlock to see where)
20 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 LG689542466 or 689542466. Listed at 20 retailers as of October 29, 2026, with prices from $826 to $9,268, a $8,442 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689542466
Dimensions8.24 × 8.24 × 5.65 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.24 mm8.24 mm3.09 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689542466
Side View
Table 65.0%Crown 37.4°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 68.6%

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: $809 AUD|High: $9,268 AUD|Avg: $2,431 AUD
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
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Retailer 19
Retailer 20
October 30, 2026
Retailer 20$826 AUD
Retailer 11$897 AUD
Retailer 9$1,002 AUD
Retailer 4$1,193 AUD
Retailer 15$1,196 AUD
Retailer 19$1,318 AUD
Retailer 14$1,377 AUD
Retailer 2$1,417 AUD
Retailer 13$1,931 AUD
Retailer 16$1,968 AUD
Retailer 17$2,074 AUD
Retailer 18$2,143 AUD
Retailer 12$2,625 AUD
Retailer 8$2,898 AUD
Retailer 3$2,974 AUD
Retailer 6$3,144 AUD
Retailer 5$3,276 AUD
Retailer 10$3,512 AUD
Retailer 7$3,838 AUD
Brilliant Earth$9,268 AUD

35 data points across 20 retailers

20 retailers$826 AUD to $9,268 AUD

A
Cheapest Retailer
-
$826 AUD
$580 USD
Final sale: no returns
Retailer 2
-
$897 AUD
$630 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
$1,002 AUD
HK$5,500 HKD
View
B+
Retailer 4
-
$1,193 AUD
$838 USD
View
A
Retailer 5
-
$1,196 AUD
$840 USD
View
A
Retailer 6
-
$1,318 AUD
$926 USD
View
A
Retailer 7
-
$1,377 AUD
€921 EUR
View
A
Retailer 8
-
$1,417 AUD
£784 GBP
View
A
Retailer 9
-
$1,931 AUD
View
A
Retailer 10
-
$1,968 AUD
ZAR 22,328 ZAR
View
A
Retailer 11
-
$2,074 AUD
$1,457 USD
View
A
Retailer 12
-
$2,143 AUD
$1,505 USD
View
Retailer 13
-
$2,625 AUD
£1,452 GBP
View
Price last confirmed 17 days ago
B+
Retailer 14
-
$2,898 AUD
SGD 2,751 SGD
View
B+
Retailer 15
-
$2,974 AUD
$2,089 USD
View
B+
Retailer 16
-
$3,144 AUD
$2,208 USD
View
B+
Retailer 17
-
$3,276 AUD
$2,301 USD
View
Retailer 18
-
$3,512 AUD
View
Price last confirmed 22 days ago
B+
Retailer 19
-
$3,838 AUD
£2,123 GBP
View
Most Expensive
B
Brilliant Earth
20259914A · Oct 29
$9,268 AUD
$6,510 USD
View
19 more retailers have this diamond
Prices start from $826 AUDSave up to $8,442 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
$826 AUD