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Cushion|Lab Grown|IGI

3.09ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG729555669

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

Certificate IGI LG729555669

Diamond specifications and retailer prices

From $1,627 AUD
$1,136 USD
As of November 3, 2026
Save $5,318 AUD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,945 AUD at Brilliant Earth · As of November 3, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG729555669 or 729555669. Listed at 13 retailers as of November 3, 2026, with prices from $1,627 to $6,945, a $5,318 spread on the same certified stone. Brilliant Earth lists it at $6,945. 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
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729555669
Dimensions8.62 × 8.36 × 5.61 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.62 mm8.36 mm3.09 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729555669
Side View
Table 65.0%Crown 34.9°Girdle: MED-THKPavilion 40°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: Nov 3
Current: $6,945 AUD|Low: $684 AUD|High: $7,346 AUD|Avg: $2,915 AUD|-5.5%
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
November 3, 2026
Retailer 14$958 AUD
Retailer 5$1,627 AUD
Retailer 13$1,628 AUD
Retailer 11$1,632 AUD
Retailer 2$1,658 AUD
Retailer 9$1,764 AUD
Retailer 10$2,239 AUD
Retailer 8$2,301 AUD
Retailer 4$3,077 AUD
Retailer 12$3,382 AUD
Retailer 3$3,406 AUD
Retailer 6$4,098 AUD
Retailer 7$4,603 AUD
Brilliant Earth$6,945 AUD

43 data points across 14 retailers

13 retailers$1,627 AUD to $6,945 AUD

A
Cheapest Retailer
-
$1,627 AUD
$1,136 USD
A
Retailer 2
-
$1,628 AUD
$1,137 USD
View
A
Retailer 3
-
$1,632 AUD
$1,140 USD
View
A
Retailer 4
-
$1,658 AUD
£912 GBP
View
A
Retailer 5
-
$1,764 AUD
€1,173 EUR
View
B+
Retailer 6
-
$2,239 AUD
View
A
Retailer 7
-
$2,301 AUD
ZAR 25,965 ZAR
View
Retailer 8
-
$3,077 AUD
£1,692 GBP
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$3,382 AUD
$2,362 USD
View
B+
Retailer 10
-
$3,406 AUD
SGD 3,214 SGD
View
B
Retailer 11
-
$4,098 AUD
$2,862 USD
View
B
Retailer 12
-
$4,603 AUD
£2,531 GBP
View
Most Expensive
B
Brilliant Earth
15885426A · Nov 3
$6,945 AUD
$4,850 USD
View
12 more retailers have this diamond
Prices start from $1,627 AUDSave up to $5,318 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
$1,627 AUD