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Cushion|Lab Grown|IGI

1.28ct F VS1 Cushion Lab Grown Diamond

GD • F/VS1 • IGI LG605341761

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG605341761

Diamond specifications and retailer prices

From $321 AUD
As of November 4, 2026
Save $1,250 AUD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,571 AUD at MOH London · As of November 2, 2026
View at MOH London

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 standard cut grade and certified by IGI LG605341761 or 605341761. Listed at 10 retailers as of November 2, 2026, with prices from $321 to $1,571, a $1,250 spread on the same certified stone. MOH London lists it at $1,571. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
F
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605341761
Dimensions7.24 × 5.92 × 3.85 mm
L/W Ratio1.22
Girdle conditionFaceted
Culet sizePointed
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
7.24 mm5.92 mm1.28 ctF / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605341761
Side View
Table 60.0%Crown 37°Girdle: MED-THKPavilion 37.8°Culet: NoneDepth 65.0%

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 4
Current: $1,571 AUD|Low: $219 AUD|High: $1,589 AUD|Avg: $850 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 7$321 AUD
Retailer 9$537 AUD
Retailer 6$616 AUD
Retailer 4$676 AUD
Retailer 8$709 AUD
Retailer 2$721 AUD
Retailer 3$784 AUD
Retailer 11$947 AUD
Retailer 5$1,010 AUD
Retailer 10$1,504 AUD
MOH London$1,571 AUD

44 data points across 11 retailers

10 retailers$321 AUD to $1,571 AUD

A
Cheapest Retailer
-
$321 AUD
Final sale: no returns
B+
Retailer 2
-
$537 AUD
View
B+
Retailer 3
-
$616 AUD
View
B+
Retailer 4
-
$676 AUD
View
B+
Retailer 5
-
$709 AUD
View
B+
Retailer 6
-
$721 AUD
View
Retailer 7
-
$947 AUD
View
Price last confirmed 81 days ago
Retailer 8
-
$1,010 AUD
View
Price last confirmed 29 days ago
B
Retailer 9
-
$1,504 AUD
View
Most Expensive
B
MOH London
LG605341761 · Nov 2
$1,571 AUD
£866 GBP
View
9 more retailers have this diamond
Prices start from $321 AUDSave up to $1,250 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
$321 AUD