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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 $307 USD
£242 GBP
As of October 29, 2026
Save $1,483 USD (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,790 USD at Do Amore Diamonds · As of October 29, 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 October 29, 2026, with prices from $307 to $1,790, a $1,483 spread on the same certified stone. Do Amore Diamonds lists it at $1,790. 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
Color
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

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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: $1,790 USD|Low: $305 USD|High: $1,790 USD|Avg: $855 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 2$307 USD
Retailer 5$406 USD
Retailer 3$624 USD
Retailer 6$810 USD
Retailer 7$810 USD
Retailer 8$976 USD
Retailer 4$1,195 USD
Do Amore Diamonds$1,790 USD

19 data points across 8 retailers

8 retailers$307 USD to $1,790 USD

A
Cheapest Retailer
-
$307 USD
£242 GBP
Returns within 30 days
A
Retailer 2
-
$406 USD
View
Returns within 30 days
B+
Retailer 3
-
$520 USD
View
Returns within 30 days
B+
Retailer 4
-
$624 USD
A$960 AUD
View
B
Retailer 5
-
$810 USD
View
Returns within 30 days
B
Retailer 6
-
$810 USD
View
Returns within 30 days
B
Retailer 7
-
$1,195 USD
£941 GBP
View
Most Expensive
B
Do Amore Diamonds
27-CD17CD6D9 · Oct 29
$1,790 USD
View
Returns within 60 days
7 more retailers have this diamond
Prices start from $307 USDSave up to $1,483 USD

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
$307 USD