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Cushion|Lab Grown|IGI

1.28ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG831687239

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831687239

Diamond specifications and retailer prices

From $306 SGD
$239 USD
As of November 1, 2026
Save $1,981 SGD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,287 SGD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg 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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG831687239 or 831687239. Listed at 16 retailers as of November 1, 2026, with prices from $306 to $2,287, a $1,981 spread on the same certified stone. Helzberg Diamonds lists it at $2,287. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831687239
Dimensions7.72 × 5.53 × 3.71 mm
L/W Ratio1.40
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
7.72 mm5.53 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831687239
Side View
Table 60.0%Crown 34.8°Girdle: STK-THKPavilion 35.2°Culet: NoneDepth 67.1%

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: Nov 1
Current: $2,287 SGD|Low: $292 SGD|High: $2,287 SGD|Avg: $958 SGD
Helzberg Diamonds
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 3$306 SGD
Retailer 10$386 SGD
Retailer 14$575 SGD
Retailer 4$582 SGD
Retailer 12$585 SGD
Retailer 11$622 SGD
Retailer 15$652 SGD
Retailer 5$822 SGD
Retailer 2$828 SGD
Retailer 9$888 SGD
Retailer 6$1,108 SGD
Retailer 8$1,156 SGD
Retailer 16$1,285 SGD
Retailer 13$1,358 SGD
Retailer 7$1,675 SGD
Helzberg Diamonds$2,287 SGD

11 data points across 16 retailers

16 retailers$306 SGD to $2,287 SGD

A
Cheapest Retailer
-
$306 SGD
$239 USD
Final sale: no returns
A
Retailer 2
-
$386 SGD
£238 GBP
View
A
Retailer 3
-
$575 SGD
€428 EUR
View
A
Retailer 4
-
$582 SGD
$455 USD
View
A
Retailer 5
-
$585 SGD
ZAR 7,384 ZAR
View
A
Retailer 6
-
$622 SGD
£383 GBP
View
A
Retailer 7
-
$652 SGD
$510 USD
View
A
Retailer 8
-
$822 SGD
$643 USD
View
A
Retailer 9
-
$828 SGD
A$996 AUD
View
B+
Retailer 10
-
$888 SGD
$694 USD
View
B+
Retailer 11
-
$1,108 SGD
View
B+
Retailer 12
-
$1,156 SGD
$904 USD
View
B+
Retailer 13
-
$1,285 SGD
$1,005 USD
View
B+
Retailer 14
-
$1,358 SGD
£836 GBP
View
B
Retailer 15
-
$1,675 SGD
$1,310 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJHMONIJP · Nov 1
$2,287 SGD
$1,788 USD
View
15 more retailers have this diamond
Prices start from $306 SGDSave up to $1,981 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
$306 SGD