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Cushion|Lab Grown|IGI

1.28ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG826615134

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

Certificate IGI LG826615134

Diamond specifications and retailer prices

From $542 SGD
As of October 30, 2026
Save $967 SGD (64%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,509 SGD at Reve Diamonds · As of October 30, 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 LG826615134 or 826615134. Listed at 14 retailers as of October 30, 2026, with prices from $542 to $1,509, a $967 spread on the same certified stone. Reve Diamonds lists it at $1,509. 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 angle35.7°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826615134
Dimensions6.32 × 6.32 × 4.20 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.32 mm6.32 mm1.28 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826615134
Side View
Table 62.0%Crown 35.7°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 66.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $562 SGD|Low: $299 SGD|High: $1,509 SGD|Avg: $760 SGD|+7.8%
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
Retailer 14
Reve Diamonds
October 31, 2026
Retailer 5$299 SGD
Retailer 9$324 SGD
Retailer 12$502 SGD
Retailer 14$512 SGD
Retailer 10$542 SGD
Retailer 1$562 SGD
Retailer 8$616 SGD
Retailer 3$728 SGD
Retailer 7$809 SGD
Retailer 13$843 SGD
Retailer 2$876 SGD
Retailer 11$1,067 SGD
Retailer 6$1,150 SGD
Retailer 4$1,402 SGD
Reve Diamonds$1,509 SGD

39 data points across 15 retailers

14 retailers$542 SGD to $1,509 SGD

Retailer 1
-
$299 SGD
Price last confirmed 11 days ago
Retailer 2
-
$502 SGD
View
Price last confirmed 7 days ago
Retailer 3
-
$512 SGD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$542 SGD
View
A
Retailer 5
-
$562 SGD
View
A
Retailer 6
-
$616 SGD
View
Retailer 7
-
$728 SGD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
$809 SGD
View
Retailer 9
-
$843 SGD
View
Price last confirmed 8 days ago
Retailer 10
-
$876 SGD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$1,067 SGD
View
Retailer 12
-
$1,150 SGD
View
Price last confirmed 7 days ago
Retailer 13
-
$1,402 SGD
View
Price last confirmed 17 days ago
Most Expensive
B
Reve Diamonds
48955B1E0 · Oct 30
$1,509 SGD
$1,181 USD
View
13 more retailers have this diamond
Prices start from $542 SGDSave up to $967 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
$542 SGD