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Cushion|Lab Grown|IGI

1.28ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG750599918

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG750599918

Diamond specifications and retailer prices

From $349 SGD
As of November 5, 2026
Save $1,019 SGD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,473 SGD at Reve Diamonds · As of October 11, 2026
View at Reve 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 LG750599918 or 750599918. Listed at 12 retailers as of November 5, 2026, with a 292% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle28.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750599918
Dimensions7.55 × 5.87 × 3.91 mm
L/W Ratio1.29
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.55 mm5.87 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750599918
Side View
Table 64.0%Crown 28.9°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 66.6%

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 5
Current: $349 SGD|Low: $259 SGD|High: $1,473 SGD|Avg: $706 SGD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
November 5, 2026
Retailer 4$267 SGD
Retailer 5$287 SGD
Retailer 1$349 SGD
Retailer 11$512 SGD
Retailer 9$516 SGD
Retailer 6$522 SGD
Retailer 12$530 SGD
Retailer 3$611 SGD
Retailer 2$711 SGD
Retailer 10$723 SGD
Retailer 13$920 SGD
Retailer 8$1,013 SGD
Retailer 7$1,368 SGD
Reve Diamonds$1,473 SGD

38 data points across 14 retailers

12 retailers$349 SGD to $1,368 SGD

A
Cheapest Retailer
-
$349 SGD
A
Retailer 2
-
$512 SGD
View
A
Retailer 3
-
$516 SGD
View
A
Retailer 4
-
$522 SGD
View
A
Retailer 5
-
$530 SGD
View
A
Retailer 6
-
$611 SGD
View
B+
Retailer 7
-
$711 SGD
View
B+
Retailer 8
-
$723 SGD
View
B+
Retailer 9
-
$920 SGD
View
B+
Retailer 10
-
$1,013 SGD
View
B
Retailer 11
-
$1,368 SGD
View
Most Expensive
Reve Diamonds
26DD45DAA · Oct 11
$1,473 SGD
$1,153 USD
View
Price last confirmed 25 days ago
11 more retailers have this diamond
Prices start from $349 SGDSave up to $1,019 SGD

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
$349 SGD