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Cushion|Lab Grown|IGI

1.28ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG607301792

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG607301792

Diamond specifications and retailer prices

From $436 AUD
As of November 2, 2026
Save $2,121 AUD (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,557 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG607301792 or 607301792. Listed at 8 retailers as of November 2, 2026, with prices from $436 to $2,557, a $2,121 spread on the same certified stone. Do Amore Diamonds lists it at $2,557. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG607301792
Dimensions6.33 × 6.25 × 4.17 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.33 mm6.25 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG607301792
Side View
Table 61.0%Crown 34.9°Girdle: THN-MEDPavilion 39.6°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
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 2
Current: $2,557 AUD|Low: $436 AUD|High: $2,557 AUD|Avg: $1,216 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 3$436 AUD
Retailer 7$580 AUD
Retailer 2$636 AUD
Retailer 6$891 AUD
Retailer 5$1,000 AUD
Retailer 8$1,156 AUD
Retailer 9$1,394 AUD
Retailer 4$1,703 AUD
Do Amore Diamonds$2,557 AUD

22 data points across 9 retailers

8 retailers$436 AUD to $2,557 AUD

A
Cheapest Retailer
-
$436 AUD
A
Retailer 2
-
$580 AUD
View
A
Retailer 3
-
$636 AUD
View
Retailer 4
-
$891 AUD
View
Price last confirmed 10 days ago
B+
Retailer 5
-
$1,000 AUD
View
B+
Retailer 6
-
$1,156 AUD
View
B
Retailer 7
-
$1,703 AUD
View
Most Expensive
B
Do Amore Diamonds
27-CD17CD6D9 · Nov 2
$2,557 AUD
$1,790 USD
View
7 more retailers have this diamond
Prices start from $436 AUDSave up to $2,121 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
1.28ct Cushion
$436 AUD